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{{Short description|American combat helmet}} {{Infobox military gear | name = M1 helmet | image = M1helmetshell.jpg | alt = | caption = View of an M1 helmet shell | origin = United States | type = [[Combat helmet]] <!-- Service history --> | service = 1941–1986 (US) | used_by = See ''[[#Users|Users]]'' for details | wars = [[World War II]]<br/>[[Chinese Civil War]]<br/>[[Korean War]]<br/>[[Hukbalahap Rebellion]]<br/>[[Civil conflict in the Philippines]]<br/>[[Indonesian National Revolution]]<br/>[[First Indochina War]]<br/>[[Vietnam War]]<br/>[[Football War]]<br/>[[Cambodian Civil War]]<br/>[[Laotian Civil War]]<br>[[Sino-Vietnamese War]]<br/>[[Internal conflict in Myanmar]]<br/>[[Cuban Revolution]]<br/>[[Portuguese Colonial War]]<br/>[[Congo Crisis]]<br/>[[Nigerian Civil War]]<br/>[[South African Border War]]<br/>[[Somali Civil War]]<br/>[[Ethiopian Civil War]]<br/>[[Ogaden War]]<br/>[[Eritrean War of Independence]]<br/>[[Western Sahara War]]<br/>[[Algerian War]]<br/>[[Suez Crisis]]<br/>[[Six-Day War]]<br/>[[War of Attrition]]<br/>[[Yom Kippur War]]<br/>[[Black September]]<br/>[[1982 Lebanon War]]<br/>[[Lebanese Civil War]]<br/>[[Iran-Iraq War]]<br/>[[Indo-Pakistani War of 1965]]<br/>[[Indo-Pakistani War of 1971]]<br/>[[Turkish invasion of Cyprus]]<br/>[[Dominican Civil War]]<br/>[[Guatemalan Civil War]]<br/>[[Salvadoran Civil War]]<br/>[[Nicaraguan Revolution]]<br/>[[Colombian conflict]]<br/>[[Internal conflict in Peru]]<br/>[[Falklands War]]<br/>[[United States invasion of Grenada]]<br/>[[United States invasion of Panama]]<br/>[[Gulf War]]<br/>[[Croatian War of Independence]]<br/>[[Bosnian War]]<br/>[[Insurgency in Khyber Pakhtunkhwa]] <!-- Production history --> | designer = Major Harold G. Sydenham<ref name="OD">{{cite web|url=http://olive-drab.com/od_soldiers_gear_m1_helmet.php|title=M-1 Steel Helmet}}</ref> | design_date = | manufacturer = McCord Radiator and Manufacturing Company and Schlueter Manufacturing Company<ref name="Maker">{{cite web|url=http://nuke.combat-helmets.com/WorldWarII/USA/SchlueterVsMcCord/tabid/288/Default.aspx|title=Schlueter Vs McCord|last=COMBAT-HELMETS|website=nuke.combat-helmets.com}}</ref><br/>Ulbrichts Witwe | unit_cost = | production_date = | number = 22 million (1945)<ref name="Maker"/> | variants = <!-- General specifications --> | spec_label = | weight = | length = | width = | height = | diameter = }} The '''M1 helmet''' is a [[combat helmet]] that was used by the [[United States Armed Forces]] from 1941 to 1986. Designed to replace the [[Brodie helmet#United States|M1917 helmet]], a [[British Empire|British]] design used during [[World War I]], the M1 helmet is known for having been used as the primary American combat headgear during [[World War II]], with similarly extensive use in the [[Korean War]] and the [[Vietnam War]]. Owing to its extensive use throughout World War II and the [[Cold War]], the M1 helmet has become an icon of the U.S. military, with its design inspiring copies and derivative designs used by other militaries around the world. In 1986, the M1 helmet, by then greatly outdated for the changing needs of modern warfare, was succeeded in U.S. military service by the [[Personnel Armor System for Ground Troops#Helmet|PASGT helmet]], another similarly iconic and influential combat helmet design. Some M1 helmets and their derivatives remain in service with several national militaries in the 21st century, although most have been relegated to being part of certain ceremonial uniforms, such as those of [[honor guards]]. == History == === Development === [[file:American Helmet Model No. 5 MET DP701191.jpg|thumb|left|The Helmet Model Number 5, intended to replace the M1917 but not adopted]] At the [[American entry into World War I|entry of the United States into World War I]] in 1917, the U.S. military did not have a combat helmet; initially, [[American Expeditionary Forces]] personnel were issued [[Brodie helmet|British Mk l helmet]]s, while those integrated with French units were issued French M15 [[Adrian helmet]]s. American production quickly began of an American variant of the Mk I, the [[Brodie helmet#United States|M1917 helmet]], with some 2,700,000 units produced by the end of the war.<ref>Brayley 2008, p. 112</ref> At that point, the shortcomings of the M1917, which lacked balance and protection of the head from lateral fire, resulted in a project to produce a better helmet which would also have a distinctively American appearance. Between 1919 and 1920, a number of new designs of helmets were tested by the Infantry Board in comparative trials along with the M1917 and helmets of other armies. One of those designs, the Helmet Model Number 5A, was selected for further study.<ref name="Studler1941_p.931">Studler 1941, p. 931</ref> This was an improved version of the Helmet Model Number 5, developed in 1917 and 1918 by [[Bashford Dean]], the curator of arms and armor at the [[Metropolitan Museum of Art]],<ref>{{cite web |url=https://www.metmuseum.org/art/collection/search/35957 |title=American Helmet Model No. 5 |author=<!--Not stated--> |website=www.metmuseum.org |publisher=The Metropolitan Museum of Art |access-date=18 September 2020}}</ref> which had been rejected during the war because of its supposed resemblance to the German ''[[Stahlhelm]]''.<ref>Dean 1920, p. 216</ref> Eventually, tests held at [[Fort Benning]] between 1924 and 1926 showed that although the Helmet Model Number 5A offered better side protection than the M1917, it was more easily penetrated from above, and in some circumstances the shape of the helmet could interfere with properly holding and firing a rifle. Further ballistic tests at the [[Aberdeen Proving Ground]] resulted in the decision to retain the M1917 in 1934,<ref name="Studler1941_p.931" /> which was then given a redesigned leather cradle and designated the M1917A1<ref>Brayley 2008, p. 114</ref> or "Kelly" helmet.<ref name="M1917 A1 Helmets">{{cite web|title=M1917 A1 Helmets|url=http://www.usmilitariaforum.com/forums/index.php?/topic/35808-m1917a1-helmets/|publisher=US Militaria Forum|access-date=July 12, 2016}}</ref> In 1940, with [[World War II]] raging in Europe and Asia for a year and the [[United Kingdom]] seeking help from North America, it seemed increasingly likely that the United States would be dragged out of [[United States non-interventionism|non-interventionism]] and into another war. The Infantry Board resurrected the quest to find a better type of helmet, since the ongoing conflict had shown that the M1917, designed to protect men standing in trenches from falling shell splinters and shrapnel, would be inadequate on the modern battlefield. The board reported: {{Blockquote|Research indicates that the ideal shaped helmet is one with a dome-shaped top and generally following the contour of the head, allowing sufficient uniform headspace for indentations, extending down in the front to cover the forehead without impairing necessary vision, extending down on the sides as far as possible without interfering with the use of the rifle or other weapons, extending down the back of the head as far as possible without permitting the back of the neck to push the helmet forward on the head when the wearer assumes the prone position, to have the frontal plate visor and to have the sides and rear slightly flanged outward to cause rain to clear the collar opening.<ref>Studler 1941, p. 933</ref>}} Accordingly, the board, under the direction of Brigadier General [[Courtney Hodges]],<ref>Cleland 1954, p. 25</ref> took the M1917 shell as the basis of the new prototype, trimmed off the brim, and added a visor and skirt-like extensions to protect the back and sides of the wearer's head.<ref>Studler 1941, pp. 933–934</ref> Rejecting the conventional systems of cradles, the new helmet was given a [[Riddell Sports Group|Riddell]] type liner and suspension system, based on the contemporary style of [[football helmet]], with an adjustable strap for the nape of the neck to prevent the helmet from rocking.<ref>Brayley 2008, pp. 117–118</ref> The resulting prototype was designated the TS-3, and the McCord Radiator Company manufactured the first examples from [[Hadfield steel]]. In tests, they were found to be able to resist a [[.45 ACP]] pistol bullet fired at [[point-blank range]], exceeding the initial specification. The TS-3 was given official approval on June 6, 1941, and was designated "Helmet, Steel, M1". Full-scale production commenced almost immediately.<ref>Studler 1941, p. 934</ref> ===Service=== {| class="wikitable floatright" style="text-align:right; margin: 20px 20px 0px 20px;" |+Total production per year 1941–45<ref>{{cite web|url=https://www.militaria-deal.com/militaria-blog/us-m1-helmet-guide|title=The US M1 Helmet Guide|website=Militaria-Deal}}</ref> |- ! Year ! Number made |- |1941 || 323,510 |- | 1942 || 5,001,384 |- | 1943 || 7,648,880 |- | 1944 || 5,703,520 |- | 1945 || 3,685,721 |} [[File:"Coast Guardsman Charles Tyner, Fireman first class, examines the jagged shrapnel hole in the helmet he wore during the - NARA - 513183.jpg|left|thumb|[[U.S. Coast Guard]] Fireman First Class Charles Tyner with his M1 helmet following [[Operation Dragoon]] in August 1944. His M1 helmet blocked a piece of shrapnel that would have otherwise fatally struck his head, inflicting a "superficial scratch" instead.]] Over 22 million U.S. M1 helmets were manufactured through September 1945.<ref name="stanton">Stanton, Shelby L., ''U.S. Army Uniforms of World War II'', Stackpole Books, 1995, {{ISBN|0-8117-2595-2}}, url:[https://books.google.com/books?id=Lita2OQpHDsC&pg=PA57], pp. 57–58</ref> Production was done by the McCord Radiator and Manufacturing Company and the Schlueter Manufacturing Company;<ref name="Maker" /> the former developed a method to create an almost eighteen-centimeter-deep bowl in a single pressing, which was considered an engineering milestone at the time.<ref>Tenner, Edward (2003), ''Our own devices: The past and future of body technology''. New York: Alfred A. Knopf. p. 252. {{ISBN|978-0375407222}}</ref> In 1942, the helmet bails were changed from a fixed, welded version to a swivel model along with slight alterations to the shaping of the side brim, while in 1944, the stainless steel helmet rim with a seam at the front was replaced by a manganese steel rim with a rear seam. Further M1 helmets were manufactured for the [[Korean War]].<ref name="Brayley2008_p.123">Brayley 2008, p. 123</ref> Following World War II, the M1 helmet was widely adopted or copied by numerous other countries and its distinctive shape was adopted as the [[NATO]] standard. Postwar analyses of wartime casualty figures by the U.S. Army Operations Research Office found that 54 percent of hits to the M1 helmet failed to penetrate, and estimated that 70,000 men had been saved from death or injury by wearing it.<ref>Brayley 2008, p. 11</ref> Production continued during the [[Cold War]] era with periodic improvements; in 1955 a grommet in the front of the liner was deleted, in 1964 the liner construction was changed to laminated [[nylon]], and in 1975 a new chinstrap design was introduced. The final contract for U.S. M1 helmets was placed in 1976.<ref name="Brayley2008_p.123"/> The M1 was phased out of U.S. military service during the 1980s in favor of the [[Personnel Armor System for Ground Troops|PASGT helmet]],<ref>Hartzog, William W. (2014), ''[https://books.google.com/books?id=xUbRprRBFfkC&pg=PA224 American Military Heritage]'', Washington DC: Military History Office, US Army Training and Doctrine Command. p. 224. {{ISBN|978-1505496604}}</ref> which offered increased [[ergonomics]] and ballistic protection. == Design == [[file:M60 machine gun DA-ST-84-04992.jpg|thumb|A U.S. Army machine-gunner wearing an M1 helmet with a [[military camouflage|camouflage]] cover and additional natural camouflage added on the slots in the helmet's cover]] The M1 is a combination of two "one-size-fits-all" helmets—an outer metal shell, sometimes called the "steel pot", and a [[hard hat]]–type liner nestled inside it featuring an adjustable suspension system. Helmet covers and netting would be applied by covering the steel shell with the extra material tucked inside the shell and secured by inserting the liner. The outer shell should not be worn by itself. The liner can be worn by itself, providing protection similar to a hard hat, and was often worn in such fashion by military policemen, Assistant Drill Instructors (known as AIs), and rifle/machine gun/pistol range staff, although they were supposed to wear steel at the range.{{Citation needed|date=November 2010}} The liner is sometimes worn in U.S. military ceremonies and parades, painted white or chromed.{{Citation needed|date=November 2010}} The depth of the helmet is {{convert|7|in}}, the width is {{convert|9.5|in}}, and length is {{convert|11|in}}, the steel shell thickness is {{convert|0.044|in|mm|abbr=on}},{{clarify|Confusing. Below it says the metal disks for stamping were 0.04 in thick. Other dimensions here or shell dimensions, and “thickness” should reflect that.|date=June 2020}} The weight of a World War II-era M1 is approximately {{convert|3|lb}}, including the liner and chinstrap. === Shell === [[file:M60 101st Airborne Division Exercise 1972.jpg|thumb|left|[[101st Airborne Division]] soldiers wearing M1 helmets during a [[training exercise]] in 1972]] The non-magnetic [[Mangalloy|Hadfield manganese steel]] for M1 helmet shells was smelted at the [[Carnegie Steel Company]] or the Sharon Steel Company of [[Pennsylvania]]. After being poured into fifteen-ton ingots (also called "heats"), the steel was divided into 216-inch by 36-inch by 4-inch blocks, known as "lifts," which were then cut into three equal 72-inch pieces to make them easier to handle. The cut lifts were sent to the [[U.S. Steel|Gary Works]] in [[Gary, Indiana]] for further processing, after which they were each reduced into 250 68-inch by 36-inch by 0.044-inch sheets, which were cut into 16.5-inch circles. The helmet discs were oiled and banded into lots of 400 for delivery by rail to McCord or Schlueter for pressing and final assembly.<ref>{{cite journal|last1=Giles|first1=Marc|date=2018|title=M1 Helmet Lot Numbers|journal=Military Collector and Historian|volume=70|issue=3|pages=258}}</ref> Each "heat" of steel was assigned a unique number by the smelter, as was each of its "lifts". When each new heat was unloaded at McCord or Schlueter, it was assigned a sequential number, and each lift within the heat was assigned a letter of the alphabet (for example, the third lift unloaded of the forty-ninth heat received by McCord would be 49C). This unique "lot and lift" number was stamped onto each helmet produced from the discs of a particular lift, and allowed for traceability in case the helmets exhibited defects. The "lot and lift" number is in reference to the time when the fabricator received the helmet discs, not when they were made into finished helmets. Lifts of heats were not loaded onto or unloaded from railcars in any particular order, and were often warehoused (also in no particular order) before being finished.<ref>{{cite journal|last1=Giles|first1=Marc|date=2018|title=M1 Helmet Lot Numbers|journal=Military Collector and Historian|volume=70|issue=3|pages=260}}</ref> The helmet discs were [[Drawing (manufacturing)|drawn]] to a depth of seven inches to create the rough helmet shape, or "shell," and the edges were trimmed. The edge of the shell has a crimped metal rim running around it, which provides a smooth edge. This is usually known as the "rim". The rim has a seam where the ends of the strip meet. On the earliest shells the seam met at the front. This was moved to the back of the rim in November 1944<ref>{{Cite web|url=http://www.hardscrabblefarm.com/ww2/dating_m1.htm|title=Dating the M1 Steel Helmet|website=www.hardscrabblefarm.com|access-date=2019-05-05}}</ref> At this time, the rim also went from being made of stainless steel to manganese steel. On each side of the shell, there are stainless steel loops for the chinstrap. Early-war production shells had fixed rectangular loops, and mid-war to 1960s helmets feature movable rectangular loops; this feature was adopted in 1943 to address the problem that when earlier helmets were dropped, the fixed loops were more susceptible to breaking off. Early shells for paratrooper helmets feature fixed, D-shaped loops. The shells were then painted with flat Olive Drab shade 319 (1941–1966) or Munsell Y10 green paint (1966 onward), with the paint on the outside of the shell sprinkled with either finely ground cork (World War II era) or silica sand (postwar). [[file:Albert Hoeben RMWO.jpg|thumb|upright|An M1 helmet with camouflage cover worn by a [[Netherlands Marine Corps]] corporal in 1945]] World War II-production helmets feature sewn-on cotton web olive drab shade 3 chinstraps, replaced gradually throughout 1943 and 1944 with olive drab shade 7 chinstraps. 1950s and later production chinstraps are made of olive drab webbing attached to the loops with removable metal clips. Nylon chinstraps were introduced in the U.S. military in 1975. These straps featured a two-piece web chin cup and were fastened by a metal snap rather than buckle.<ref name="Brayley2008_p.123"/> Many soldiers wore the [[webbing]] chinstraps unfastened or looped around the back of the helmet and clipped together. This practice arose for two reasons: First, because hand-to-hand combat was anticipated, and an enemy could be expected to attack from behind, reach over the helmet, grab its visor, and pull. If the chinstrap were worn, the head would be snapped back, causing the victim to lose balance, and leave the throat and stomach exposed to a knife thrust. Secondly, many men incorrectly believed that a nearby exploding bomb or artillery shell could cause the chinstrap to break their neck when the helmet was caught in its concussive force, although a replacement buckle, the T1 pressure-release buckle, was manufactured that allowed the chinstrap to release automatically should this occur. In place of the chinstrap, the nape strap inside the liner was counted on to provide sufficient contact to keep the helmet from easily falling off the wearer's head.<ref>{{cite news |last=Tagliavini |first=Michele |url=https://www.theguardian.com/notesandqueries/query/0,,-2696,00.html |work=[[The Guardian]] |location=London |access-date=8 March 2013|title=STAGE AND SCREEN In all those Hollywood war films, and in quite a few newsreels, the GIs wear helmets but never fasten the straps. Is this bravado, bad discipline or artistic licence?}}</ref> The design of the bowl-like shell led to some novel uses: When separated from the liner, the shell could be used as an [[entrenching tool]], [[hammer]], [[washbasin]], [[bucket]], [[bowl]], or [[seat]]. The shell was also used as a [[cooking pot]], but the practice was discouraged as it would make the metal alloy brittle.<ref>{{cite web|last=Pike|first=John|title=M1 Steel Combat Helmet and Liner|url=http://www.globalsecurity.org/military/systems/ground/m1-steel-pot.htm|work=GlobalSecurity.org|access-date=8 March 2013}}</ref> === Liner === [[file:M1HelmetDiagram.gif|thumb|left|The interior of an M1 helmet liner]] The liner is a hard hat-like support for the suspension, and is designed to fit snugly inside the steel shell. The first liners were produced in June 1941 and designed by [[Hawley Products Company]].<ref name="Giard">{{cite book|last1=Giard|first1=Regis|title=Helmets of ETO: A Historical and Technical Guide|date=2008|publisher=Casemate Publishers|location=Havertown, PA|isbn=9782352500629|page=12}}</ref> The suspension was initially made from strips of silver rayon webbing stretched around and across the inside of the liner. A sweatband is clipped onto these, and is adjusted to fit around the head of the wearer. Three triangular bands of rayon meet at the top of the helmet, where they were adjusted by a shoestring to fit the height and shape of the wearer's head. A snap-on nape strap cushioned the liner against the back of the wearer's neck and stops it from falling off. As the rayon had a tendency to stretch and not recover its shape, the suspension material was later changed to olive drab number 3, and then olive drab number 7, herringbone twill cotton webbing. World War II and Korean War-era liners have their own chinstrap made from brown [[leather]]. The liner chinstrap does not have loops like the shell; it was either riveted directly to the inside of the liner (early examples) or snapped onto studs. It can still swivel inside the liner. The chinstrap is usually seen looped over the brim of the shell, and helps to keep it in place when its own chinstraps are not in use. Early liners were made from a mix of compressed paper fibers impregnated with [[phenolic resin]], with olive drab cotton twill fabric stretched over the outside. They were discontinued in November 1942 because they degraded quickly in high heat and high humidity environments. They were replaced by evolving [[plastic]] liners,<ref name="Giard" /> using a process developed by the Inland Division of [[General Motors]]. These liners were made of strips of cotton cloth bathed in phenolic resin and draped in a star shape over a liner-shaped mold, where they were subjected to pressure to form a liner. The initial "low pressure" process was deemed unacceptable by the Army, but accepted out of need. These liners were made by St. Clair Manufacturing and [[Hood Rubber Company]]. Hawley, Hood, and St. Clair's contracts were cancelled by early 1944, when a "high pressure" process which produced better-quality liners became commercially viable. Companies which produced "high pressure" liners during World War II included [[Westinghouse Electric (1886)|Westinghouse Electric & Manufacturing Company]], [[Firestone Tire and Rubber Company]], CAPAC Manufacturing, Inland (whose molds were acquired by Firestone after their contract was cancelled), [[Mine Safety Appliances]] Company, [[Seaman Paper|Seaman Paper Company]], and International Molded Plastics, Inc.<ref name="Giard" /> Liners essentially identical in construction to "high pressure" World War II examples were produced between 1951 and 1954 during the [[Korean War]] by the Micarta Division of Westinghouse and CAPAC Manufacturing. In the 1960s, the M1 helmet liner was redesigned, eliminating the leather chinstrap, nape strap, and changing the suspension webbing to a pattern resembling an asterisk in a coarse cotton web material in lieu of the earlier cotton herringbone twill. In the early 1970s, suspension materials changed to a thicker, more flexible nylon with a rougher unbeveled rim. Later changes included a move to a yellow and green material for liner construction. M1 helmet liners intended for use by paratroopers had a different construction. The short piece of webbing which held the nape strap at the back of the wearer's neck was extended around the sides of the liner, and terminated on each side in A-shaped yokes which hung down below the rim of the liner and had buckles for an adjustable chin cup made of molded leather. Two female snaps on the inside of the liner above the "A" yokes accepted male snaps on each of the steel shell's chinstraps, and helped to keep the liner inside the steel shell during abrupt or violent movements. == Accessories == [[file:Lopez scaling seawall.jpg|thumb|upright|left|Camouflage-patterned [[helmet cover]]s worn by [[United States Marine Corps|U.S. Marines]] during the [[Battle of Incheon]] in 1950, during the [[Korean War]]]] [[file:Chemical weapon1.jpg|thumb|An [[Islamic Republic of Iran Army]] soldier wearing an M1 helmet and a gas mask in a trench during the [[Iran-Iraq War]]]] In late 1942, the [[United States Marine Corps]] used a cloth [[helmet cover]] with a camouflage pattern for its helmets. The cover was made from cotton herringbone [[twill]] fabric. It had a "[[forest green]]" pattern on one side and a "brown coral island" pattern on the other. The U.S. Army often used nets to reduce the helmets' shine when wet and to allow burlap scrim or vegetation to be added for camouflage purposes. Most nets were acquired from [[British Army|British]] or [[Canadian Forces Land Force Command|Canadian Army]] stocks or cut from larger camouflage nets. The Army did not adopt an official issue net until the "Net, Helmet, with Band" that included an elastic neoprene band to keep it in place. After World War II, no new covers were issued. At the start of the Korean War in 1950, many soldiers had to improvise covers from burlap sandbags or parachute fabric. A consignment of 100,000 olive drab covers was dispatched to the theater, but the ship carrying them, SS ''Jacob Luckenbach'',<ref>{{cite web |title=The Shipwreck Jacob Luckenbach |url=https://sanctuaries.noaa.gov/maritime/expeditions/luckenbach.html |publisher=National Marine Sanctuaries, National Oceanic & Atmospheric Administration }}</ref> sank in a collision en route and they were all lost. In 1963, the Army and Marine Corps adopted a reversible fabric cover called the "Mitchel Pattern", with a leafy green pattern on one side and orange and brown cloud pattern on the other.<ref>Brayley 2008, p. 124</ref> This type was nearly omnipresent during the [[Vietnam War]], where, for the first time, the Army wore the cloth camouflage as general issue; in Vietnam, the green portion of the reversible fabric camouflage was normally worn outermost. Helmet covers in the (European) Woodland camouflage were designed for fighting in the European Theater of Operations ([[NATO]]), and became the post-Vietnam jungle pattern camouflage cover used by the U.S. military from the late 1970s onward. The (European) Woodland pattern was only printed on one side and was not reversible, though some rare desert camouflage examples exist. These covers were all constructed from two semi-circular pieces of cloth stitched together to form a dome-like shape conforming to the helmet's shape. They were secured to the helmet by folding their open ends into the steel pot, and then placing the liner inside, trapping the cloth between the pot and the liner. An [[olive green]] elastic band, intended to hold additional camouflage materials, was often worn around the helmet to further hold the cover in place. Other armies used these or similar covers printed with different camouflage patterns, or employed entirely different methods. In the [[Royal Netherlands Army|Dutch Army]], for example, it was common practice to use a square piece of [[burlap]] as a helmet cover on M1 helmets, usually secured by a net and a wide rubber band. During the [[Battle of the Bulge]] and the Korean War, soldiers made white helmet covers as camouflage in snowy areas. They were not issued to soldiers, so many soldiers simply made them using white cloth from a shirt or tablecloth.{{Citation needed|date=December 2010}} == Variants == ;M1 :Standard model introduced in 1941 and issued until 1986. Different alterations were made to the M1's design at various stages of World War II, as well as during the Korean War and Vietnam War, but in general the M1 is the standard helmet of this type. ;M2 :[[Paratrooper]] variant introduced in January 1942. The main difference between it and the M1 is its D-shaped [[Spot welding|spot welded]] bales, as opposed to the M1's rectangular chinstrap bales. The chinstrap of the M2 also has a button snap on the end that allows it to be fastened to the liner. Otherwise, it is identical to the M1.<ref name=":0">{{Cite web |last= |first= |title=HOW TO IDENTIFY US WWII M-1 INFANTRY & M-1C PARATROOPER HELMETS |url=https://toppots.net/blogs/how-to/m1-helmet-identification |access-date=2025-02-15 |website=Top Pots - WWII US M-1 Helmets, Liners and Reproduction Uniform Sales |language=en}}</ref> ;M1C :Improved version of the M2 helmet introduced in January 1945, replacing the M2 as the primary American paratrooper helmet until 1986. The primary difference with the M1C is its four-point "A-yoke" chinstrap with a leather chin cup, designed to support the head and neck and prevent adverse movement during jumps. It uses a belt loop-type connection to secure the chinstrap to the A-yokes, which can be opened or closed from either side and partially removed without tools. Otherwise, the M1C, like the M2, is nearly indistinguishable from the M1.<ref name=":0" /> ;M3 :"Flak" variant introduced in December 1943. The M3 was designed for [[United States Army Air Forces]] [[bomber]] crews due to their disdain for the M1, which was uncomfortable with [[headphones]], too large to wear in [[ball turret]]s, and offered inadequate protection to the head against debris and bumps. Based on M1 helmet modifications first made by the [[306th Bombardment Group]] in January 1943, the M3 helmet's most distinctive feature is its hinged steel ear covers lined with felt that protected against anti-aircraft flak and made the helmet compatible with headsets. The shell itself is lined with flocking to prevent the steel from freezing and ensure skin would not stick to it at high altitudes.<ref>{{Cite web |title=Steel Helmet, M-3 Flak Helmet: US Army Air Force |url=https://www.iwm.org.uk/collections/item/object/30090946 |access-date=2025-02-15 |website=Imperial War Museums |language=en}}</ref><ref name=":1">{{Cite news |title=Bomber Crew Protection |url=https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/1519644/bomber-crew-protection/ |archive-url=http://web.archive.org/web/20250117192122/https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/1519644/bomber-crew-protection/ |archive-date=2025-01-17 |access-date=2025-02-15 |work=National Museum of the United States Air Force |language=en-US}}</ref> ;M5 :Improved version of the M3 flak helmet introduced in February 1945. The M5 lacks the distinct swept brim of the other M1 variants and has deeper form-fitting ear covers. Another unique feature is the chinstraps being clipped to the swivel bails, which eventually became standard on postwar M1s. Some elements were taken from the [[Malcolm C. Grow|Grow helmet]], which was introduced for American aircrews in December 1943 as the M4 helmet.<ref name=":1" /> == Users == <!--READ FIRST: This section is for cited entries only. Please do not add entries into this list without a citation from a reliable source. All entries without a citation will be removed. Thank you.--> === Current === [[file:191110-F-VD052-0149.jpg|thumb|A [[Turkish Air Force]] serviceman wearing a ceremonial M1 liner during an [[Mustafa Kemal Atatürk|Atatürk]] Memorial Day ceremony at [[Anıtkabir]] in 2019]] [[file:Victory Day Parade, Dhaka, Bangladesh 2011.jpg|thumb|[[Bangladesh Army]] infantry wearing M1 helmets during a [[Victory Day (Bangladesh)|Victory Day]] parade in 2011]] * {{flag|Republic of China (1912–1949)|name=China, Republic of}}: Used by the [[Republic of China Army]] during the [[Second Sino-Japanese War]] and the [[Chinese Civil War]]; issued as a combat helmet by [[Taiwan]] until the 1990s.<ref>{{cite web |title=Taiwan M1 |url=http://brendonshelmets.weebly.com/taiwan-m1.html |website=Brendon's Helmets}}</ref> Remains in use as a ceremonial helmet. * {{flag|Colombia}}: Some M1 helmets still in service with the [[Military Forces of Colombia|Military Police]] and ceremonial units.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/colombia/|title=Colombia}}</ref> * {{flag|Dominican Republic}}: Only used by [[honor guards]] in the [[Armed Forces of the Dominican Republic]].<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/dominican-republic/|title=Dominican Republic}}</ref> * {{flag|India}}: M1 helmets are produced locally and are still in service with some [[Indian Armed Forces]] and [[Indian Police Service]] units.<ref>{{cite web|url=http://brendonshelmets.weebly.com/india-m1.html|title=India M1|website=Brendon's Helmets}}</ref> * {{flag|Iran}}: West German-made M1 helmets<ref>{{Cite web |url=http://brendonshelmets.weebly.com/iran-m62.html |title=Iran M62}}</ref> were used by the [[Imperial Iranian Army]] until the [[Iranian revolution]].<ref name="Iran">{{Cite web |date=16 October 2016 |title=WWII weapons in the Ayatollah's Iran |url=https://wwiiafterwwii.wordpress.com/2016/10/16/wwii-weapons-in-the-ayatollahs-iran/}}</ref> They remained in use with the [[Islamic Republic of Iran Armed Forces]] until its eventual official retirement,{{When|date=February 2025}} though some examples are reportedly still in use.<ref name="Iran" /> * {{flag|Guatemala}}: Used only by the [[Armed Forces of Guatemala|Guatemalan Army and Navy]].<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/guatemala/|title=Guatemala}}</ref> * {{flag|Japan}}: Formerly used M1 helmets supplied by the U.S. until 1966,<ref>{{cite web |url=http://rightwing.sakura.ne.jp/equipment/jgsdf/quartermaster/type66helmet/type66helmet.html |script-title=ja:66式 鉄帽 |website=rightwing.sakura.ne.jp |language=ja}}</ref> when the [[Japan Self-Defense Forces]] began issuing the [[Type 66 helmet]], a locally produced variant. The Type 66 was replaced in frontline service by the Type 88 helmet in 1988, though they remain in use for non-combat roles and operations.<ref>{{Cite web|url=https://www.mod.go.jp/j/procurement/chotatsu/nds/pdf/z/z8001.pdf|title=Ministry of Defense specification sheet, LINER, GROUND TROOPS' HELMET|date=2014-04-23|author=Ministry of Defense (Japan)|author-link=Ministry of Defense (Japan)|language=ja}}</ref><ref>{{Cite web|url=http://www.clearing.mod.go.jp/kunrei_data/f_fd/1967/fy19680228_00024_008.pdf|title=Ground Self-Defense Forces Dress Manual|date=2014-03-28|author=Ministry of Defense (Japan)|language=ja}}</ref> * {{flag|Panama}}: Used by the former [[Panamanian Public Forces#History|Panamanian militaries]], with some units reportedly still used by the Panamanian Public Forces.<ref>{{cite web|url=http://mahargpress.com/cascos-militares/sumario-del-capitulo/centroamerica/panama-2/|title=Panama}}</ref> * {{flag|Philippines}}: Formerly used by the [[Armed Forces of the Philippines]] as a frontline combat helmet.<ref>{{cite web |title=Phil. Marines PASGT helmet |url=http://www.oocities.org/pmcmssr/pmhelmet1.html |website=www.oocities.org}}</ref> Remains in limited use as a training helmet. * {{flag|South Korea}}: Used by the [[Republic of Korea Armed Forces]] during the [[Korean War]] and the [[Vietnam War]]. Replaced by the [[Bangtan Helmet]], which is loosely based on the M1 helmet. * {{flag|Turkey}}: Used by the [[Turkish Armed Forces]] before being retired from frontline service; currently remains in use as a ceremonial helmet.<ref>{{cite web|title=Turkey M1 Airborne|url=http://brendonshelmets.weebly.com/turkey-m1-airborne.html|website=Brendon's Helmets}}</ref><ref name="nyc-techwriters">{{cite web|title=Military Collection of Peter Suciu|url=http://www.nyc-techwriters.com/militaria/turkish_helmets.htm|url-status=live|archive-url=https://web.archive.org/web/20150415225642/http://www.nyc-techwriters.com/militaria/turkish_helmets.htm|archive-date=15 April 2015|access-date=5 September 2015|publisher=nyc-techwriters.com}}</ref> * {{flag|Uruguay}}: First units delivered between 1942 and 1945, with limited examples reportedly still in use by the [[Armed Forces of Uruguay]].<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/uruguay/|title=Uruguay}}</ref> * {{flag|Vietnam}}: Some M1 helmets are still used by the [[People's Army of Vietnam]], many of which were captured from American and South Vietnamese inventories during and after the Vietnam War.<ref>{{Cite web|url=https://soha.vn/quan-su/tim-hieu-cac-loai-mu-sat-mu-chong-dan-cua-qdndvn-20140703143923538.htm|title = Tìm hiểu các loại mũ sắt, mũ chống đạn của QĐNDVN| date=5 July 2014 }}</ref> === Former === [[file:Parade of US equipped Chinese Army in India.jpg|thumb|[[National Revolutionary Army|Chinese National Revolutionary Army]] soldiers with M1 helmets during the Second Sino-Japanese War]] [[file:Panzergrenadiere 5 Bundeswehr 1968.jpg|thumb|[[German Army|West German Army]] [[Panzergrenadier]] in 1968 wearing with M56 ''Stahlhelms'' adapted from American M1 helmets]] [[file:Soldadosargentinos3.jpg|thumb|upright|[[Argentine Army]] conscripts wearing M1 helmets during the [[Falklands War]]]] * {{flag|Argentina}}: Used by the [[Armed Forces of the Argentine Republic]] before they were replaced.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/argentina/|title=Argentina}}</ref> * {{flag|Australia}}: The [[Australian Defence Force]] used Australian and American-made M1 helmets from the 1960s to the 1990s. Replaced by the Australian-made M91 PASGT helmet in the early 1990s.<ref>{{cite web|url=https://www.awm.gov.au/collection/REL33703|title=M1 Steel helmet : HMAS Kanimbla|publisher=Australian War Memorial}}</ref> * {{flag|Austria}}: Used by the [[Austrian Armed Forces]] after it was reformed in 1955, with 30,000 M1 helmets supplied by the U.S.<ref name="OC">{{cite web|url=http://www.theocadcollection.com/euroclones---an-essentiel-collectors-guide.html|title="Euroclones" - An essentiel collector's guide|website=OCAD Militaria Collectors Resources|access-date=2017-09-11|archive-date=2017-09-11|archive-url=https://web.archive.org/web/20170911205148/http://www.theocadcollection.com/euroclones---an-essentiel-collectors-guide.html|url-status=usurped}}</ref> Ulbrichts Witwe began producing M1 helmets in 1958, designated as the ''Stahlhelm 2'' (M.58), with another variant made in the 1970s with a German helmet suspension.<ref name="OC"/> * {{flag|Belgium}}: Used Ulbrichts-made M1 helmets.<ref name="OC"/> * {{flag|Brazil}}: Formerly used U.S. and Brazilian-made M1 helmets.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/brazil/|title=Brazil}}</ref> * {{flag|Bolivia}}: Used U.S. and Brazilian-made M1 helmets before being removed from service.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/bolivia/|title=Bolivia}}</ref> * {{flag|Canada}}: Used by the [[Canadian Armed Forces]] until the 1990s, when it was replaced by the [[CG634]] helmet.<ref>{{Cite web|url=http://www.mpmuseum.org/securhelmet.html|title = Canadian Forces Helmets}}</ref> * {{flag|Chile}}: Formerly used by the [[Chilean Armed Forces]], with liners made by Baselli Hnos.<ref>{{cite web|url=http://brendonshelmets.weebly.com/chile-m1.html|title=Chile M1|website=Brendon's Helmets}}</ref> * {{flag|Costa Rica}}: Formerly used U.S.-made M1 helmets.<ref>{{cite web |url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/costa-rica/ |title=Costa Rica}}</ref> * {{flag|Croatia}}: Used during the [[Croatian War of Independence]], with some remaining in service until the 2000s. * {{flag|Cuba}}: Used by the [[Cuban National Army]] until the [[Cuban Revolution]], at which point they were retired by the [[Cuban Revolutionary Armed Forces]] and replaced by [[Warsaw Pact]]-made helmets.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/cuba/|title=Cuba}}</ref> * {{flag|Denmark}}: Used Ulbrichts-made M1 helmets, designated the ''Staalhjelm model 48'' (m/48).<ref name="OC" /> * {{flag|Ecuador}}: Formerly used by the [[Armed Forces of Ecuador]].<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/ecuador/|title=Ecuador}}</ref> * {{flag|El Salvador}}: Provided by the U.S. in the 1970s as part of military aid, now replaced by the PASGT helmet.<ref>{{cite web |url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/el-salvador/ |title=El Salvador}}</ref> * {{flag|Greece}}: Adopted by the [[Hellenic Armed Forces]] in 1952.<ref>{{cite web|url=http://brendonshelmets.weebly.com/greek-m1.html|title=Greek M1|website=Brendon's Helmets}}</ref> * {{flag|Haiti}}: Formerly used by the [[Armed Forces of Haiti]].<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/haiti/|title=Haiti}}</ref> * {{flag|Honduras}}: Formerly used by [[Armed Forces of Honduras]] after signing the [[Rio Treaty]].<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/honduras/|title=Honduras}}</ref> * {{flag|Indonesia}}: Obtained from the Netherlands after the [[Indonesian National Revolution]] in 1949 and used by the [[Indonesian Army]] until the 1990s. * {{flag|Israel}}: Formerly used by the [[Israel Defense Forces]], supplied by the U.S., UK, and France.<ref>{{cite web|url=http://brendonshelmets.weebly.com/israel-m1.html|title=Israel M1|website=Brendon's Helmets}}</ref> Some M1s used have a combination of American and Israeli parts.<ref>{{cite web|url=https://www.collectorsweekly.com/stories/145656-israeli-m1-steel-helmet-yom-kippur-war-1|title=Israeli M1 steel helmet Yom Kippur War 1973 - Collectors Weekly|website=www.collectorsweekly.com}}</ref> * {{flag|Lebanon}}: Formerly used by the [[Lebanese Armed Forces]]. Replaced by the PASGT helmet. * {{flag|Liberia}}: Used by the [[Armed Forces of Liberia]] until the 2000s. * {{flag|Luxembourg}}: Formerly used by the [[Luxembourg Armed Forces]].<ref>{{cite web |title=M53 Troops helmet |url=https://dutchhelmets.nl/en/helmets/combat-helmets/m53-troops-helmet |website=Dutchhelmets.nl |access-date=25 December 2023}}</ref> * {{flag|Malaysia}}: Used locally produced M1 helmets in the 1970s and 1980s. * {{flag|Mexico}}: Formerly used by the [[Mexican Army]].<ref>{{cite web|url=http://brendonshelmets.weebly.com/mexico-m1.html|title=Mexico M1|website=Brendon's Helmets}}</ref> * {{flag|New Zealand}}: Used by the [[New Zealand Army]] from 1961 to the 2000s. Gradually replaced by the PASGT helmet in the 1990s.<ref>{{cite web|url=https://rnzaoc.com/2024/12/01/the-evolution-of-helmets-in-the-new-zealand-army/|title=The Evolution of Helmets in the New Zealand Army|website=Royal New Zealand Army Ordnance Corps|date=December 2024 |access-date=4 February 2025|archive-url=https://archive.today/20250204025651/https://rnzaoc.com/2024/12/01/the-evolution-of-helmets-in-the-new-zealand-army/|archive-date=4 February 2025}}</ref> * {{flag|Netherlands}}: Used Ulbrichts-made M1 helmets.<ref name="OC"/> * {{flag|Nicaragua}}: The [[National Guard (Nicaragua)|Guardia Nacional de Nicaragua]] used M1 helmets supplied by the U.S. from 1954 to 1979.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/central-america/nicaragua/|title=Nicaragua}}</ref> * {{flag|Nigeria}}: Formerly used by the [[Nigerian Armed Forces]]. * {{flag|Norway}}: Used Ulbrichts-made M1 helmets.<ref name="OC"/> * {{flag|Paraguay}}: Adopted the M1 helmet after signing the Rio Treaty.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/paraguay/|title=Paraguay}}</ref> * {{flag|Peru}}: Formerly used M1 helmets supplied by the U.S., Israel, and West Germany.<ref>{{cite web|url=http://brendonshelmets.weebly.com/peru-m1.html|title=Peru M1|website=Brendon's Helmets}}</ref><ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/peru/|title=Peru}}</ref> * {{flag|Republic of Bosnia and Herzegovina}}: Formerly used by the [[Army of the Republic of Bosnia and Herzegovina]] with [[M81 Woodland]] camouflage. ** {{flag|Croatian Republic of Herzeg-Bosnia}}: Formerly used by the [[Croatian Defence Council]] with M81 Woodland camouflage during the [[Bosnian War]]. * {{flag|Saudi Arabia}}: Taiwan-produced copies were used by the [[Armed Forces of Saudi Arabia]] as late as the [[Gulf War]].<ref>{{Cite web |title=Saudi Imported M1 Helmet Copy |url=https://www.middleeastmilitaria.com/987654488765h.html |access-date=2023-09-04 |website=Middle East Militaria |language=en}}</ref> * {{flag|Singapore}}: Formerly used by the [[Singapore Armed Forces]] from the late 1950s to the mid-1980s, with inner liners made locally. Gradually replaced by a helmet similar to the PASGT helmet in the 1990s.<ref>{{cite web|url=http://brendonshelmets.weebly.com/singapore-m1.html|title=Singapore M1|website=Brendon's Helmets}}</ref> * {{flag|Spain}}: Used M1 helmets made in the U.S. and Europe, modified for use by the [[Spanish Marine Infantry]] and [[Paratroopers Brigade "Almogávares" VI]].<ref name="OC" /> * {{flag|South Vietnam}}: Used by the [[Army of the Republic of Vietnam]] until their dissolution after the [[fall of Saigon]] in 1975. * {{flag|United States|1960}}: Formerly used by the [[United States Army|U.S. Army]], [[United States Marine Corps|Marine Corps]], [[United States Navy|Navy]], and [[United States Coast Guard|Coast Guard]] from 1941 to 1986 as the M1, with the [[United States Air Force|Air Force]] using their own variants for [[Fragmentation (weaponry)|flak protection]] designated the ''M3'' and later the ''M5''. Replaced by the PASGT helmet in all branches in 1986, though some reportedly remained in [[National Guard (United States)|National Guard]] and [[United States Army Reserve|Army Reserve]] inventories into the late 1980s and early 1990s, apparently seeing limited use in the [[United States invasion of Panama|invasion of Panama]].<ref>{{cite web|url=http://www.smithsonianmag.com/smithsonian-institution/how-military-helmet-evolved-hazard-bullet-shield-180963319/|title=How the Military Helmet Evolved From a Hazard to a Bullet Shield|first=Donovan|last=Webster}}</ref> * {{flag|Venezuela}}: Used by the Venezuelan military, now replaced.<ref>{{cite web|url=http://brendonshelmets.weebly.com/venezuela-m1.html|title=Venezuela M1|website=Brendon's Helmets}}</ref> Majority made in the U.S. and South Korea.<ref>{{cite web|url=http://mahargpress.com/military-helmets/chapters-summaries/south-america/venezuela/|title=Venezuela}}</ref> * {{flag|West Germany}}: Formerly used by the [[Bundeswehr]], produced locally by the F. W. Quist Company. The original West German copy was a "two-piece steel helmet" ("zweiteiliger ''Stahlhelm''") designated the M-62 ''Stahlhelm''.<ref>{{cite web|url=http://brendonshelmets.weebly.com/west-germany-m1.html|title=West Germany M1|website=Brendon's Helmets}}</ref> In 1958, the M-62 was remade as a one-piece helmet and renamed the ''Stahlhelm'' M1A1, produced in three sizes: 66, 68, and 71. The M1A1 was issued until 1981, when a modified version was released and renamed the ''Helm1A1''; modifications included a three-point chin strap with the third point connecting at the nape, extra large sizes, and a further adjustable liner. Use seemingly ended after [[German reunification]] in the 1990s.<ref>{{cite web |url=http://www.theocadcollection.com/euroclones---an-essentiel-collectors-guide.html |title="Euroclones": An essential guide to postwar steel helmets |first=Roger |last=Lucy |date=January 2015 |work=OCAD Militaria Collectors Resource |access-date=26 November 2016 |archive-date=11 October 2016 |archive-url=https://web.archive.org/web/20161011215026/http://www.theocadcollection.com/euroclones---an-essentiel-collectors-guide.html |url-status=usurped }}</ref> ==See also== * [[M1C helmet]] * [[Modèle 1951 helmet]] * [[Talker helmet]] ==References== {{Reflist|30em}} ===Books=== *{{Cite book | edition = 1st | publisher = R. James Bender Pub | isbn = 091213870X | last = Armold | first = Chris | title = Steel pots: the history of America's steel combat helmets | location = San Jose, Calif | date = 1997 }} *{{Cite book | publisher = Crowood Press | isbn = 978-1-84797-024-4 | last = Brayley | first = Martin J. | title = Tin Hats to Composite Helmets: A Collector's Guide | location = Marlborough, Wiltshire, UK | date = 2008 }} *{{Cite book | publisher = Yale University Press | last = Dean | first = Bashford | title = Helmets and Body Armor in Modern Warfare | url = https://archive.org/details/helmetsbodyarmor00deanuoft/page/216/mode/2up | location = New Haven, CT | date = 1920 }} *{{Cite book | publisher = [[Schiffer Publishing]] | isbn = 9780764336638 | last = Oosterman | first = Pieter | title = The M-1 helmet of the World War II GI: a reference based on the M-1Helmet.com collection | location = Atglen, PA | date = 2010 }} *{{Cite book | publisher = Paris, France : Histoire & Collections | isbn = 9782352500629 | last1 = Giard | first1 = Régis | last2 = Blais | first2 = Frederic | title = Helmets of ETO: a historical and technical guide | date = 2007 }} *{{Cite book | publisher = [[Schiffer Publishing]] | isbn = 0764300741 | last = Reynosa | first = Mark A. | title = The M-1 helmet: a history of the U.S. M-1 helmet in World War II | location = Atglen, PA | date = 1996 }} *{{Cite book | publisher = [[Schiffer Publishing]] | isbn = 076431033X | last = Reynosa | first = Mark A. | title = Post- World War II M-1 helmets: an illustrated study | location = Atglen, PA | date = 1999 }} ===Journals=== *{{cite journal |last1=Studler |first1=Rene R |date=May–June 1942 |title=The New Combat Helmet |url=https://books.google.com/books?id=JN0fAQAAMAAJ&pg=RA2-PA931 |journal=Army Ordnance |volume=XXI |issue=132 |pages=931–934 |access-date=September 17, 2020}} *{{cite journal |last1=Cleland |first1=John R. D. |date=January 1954 |title=What About The Helmet? |url=https://books.google.com/books?id=SD9EAQAAIAAJ&pg=RA6-PA25 |journal=United States Army Combat Forces Journal |volume=4 |issue=6 |pages=24–25 |access-date=September 17, 2020}} ==External links== {{Commons category|M1 helmets}} * {{cite web |ref={{harvid|IWM|1944}} |url=http://www.iwm.org.uk/collections/item/object/30090608 |title=steel helmet, pattern M1, with liner, US Army |publisher=Ukniwm.org.uk |access-date=7 December 2017}} * {{cite web |ref={{harvid|IWM|1942}} |url=http://www.iwm.org.uk/collections/item/object/30100975 |title=Steel Helmet, 'Talker' MKII: US Navy |publisher=Ukniwm.org.uk |access-date=7 December 2017 |archive-date=8 December 2017 |archive-url=https://web.archive.org/web/20171208150008/http://www.iwm.org.uk/collections/item/object/30100975 |url-status=dead }} * [https://www.youtube.com/watch?v=uqGajwgiUWY Are Navy Helmets Bulletproof?] Battleship New Jersey, YouTube - Show and tell video of M1 helmet and [[US Navy Mk II talker helmet]] {{helmets}} {{US Army uniforms}} [[Category:1940s fashion]] [[Category:20th-century fashion]] [[Category:21st-century fashion]] [[Category:International Hat Company]] [[Category:Combat helmets of the United States]] [[Category:World War II military equipment of the United States]] [[Category:Canadian military uniforms]] [[Category:Combat helmets of Canada]] [[Category:Military equipment introduced from 1940 to 1944]]
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