Editing Aegis Combat System (section)

== Ballistic missile defense ==
{{anchor|Aegis Open Architecture}}
The [[Aegis Ballistic Missile Defense System]] (BMD) program by the U.S. [[Missile Defense Agency]] enables the Aegis system to act in a sea-based [[ballistic missile defense]] function, to counter short- and medium-range [[ballistic missile]]s of the variety typically employed by a number of potential opponent states. The program is part of the [[United States national missile defense]] strategy and [[NATO missile defence system|NATO European missile defense system]].<ref name="The White House"/>

BMD capabilities allow vessels equipped with [[Mk 41 Vertical Launching System]] (VLS) to intercept ballistic missiles in post-boost phase and prior to reentry, using the [[RIM-161 Standard Missile 3]] (SM-3) mid-course interceptors<ref>{{Cite web |title=Standard Missile-3 (SM-3) |url=https://missilethreat.csis.org/defsys/sm-3/ |access-date=2022-08-30 |website=Missile Threat |language=en-US}}</ref> and the [[RIM-156 SM-2ER Block IV|RIM-156 Standard Missile 2 Extended Range Block IV]] (SM-2ER Block IV)<ref>{{Cite web |title=Standard Missile-2 Block IV |url=https://missilethreat.csis.org/defsys/standard-missile-2-block-iv/ |access-date=2022-08-31 |website=Missile Threat |language=en-US}}</ref> terminal-phase interceptors.<ref>{{Cite web |title=Aegis Ballistic Missile Defense |url=https://missilethreat.csis.org/system/aegis/ |access-date=2022-11-30 |website=Missile Threat |language=en-US}}</ref> The SM-2ER Block IV can engage the ballistic missiles within the atmosphere (i.e. endoatmospheric intercept) in the terminal phase of a missile's trajectory with a blast fragmentation warhead. The Standard Missile 3 is a development of the SM2-ER Block IV, capable of exo-atmospheric intercept (i.e. above the atmosphere) during the midcourse phase; its kinetic warhead (KW) is designed to destroy a ballistic missile's warhead by colliding with it. [[RIM-174 Standard ERAM]] (Standard Missile 6) extended range active missile is a further development of the SM-2ER Block IV, which adds a booster and an [[active radar homing]] seeker.<ref name="naval-technology.com">[http://www.naval-technology.com/projects/aegis-ballistic-missile-defence-bmd-us/ Aegis Ballistic Missile Defence (BMD) System, United States of America]</ref> SM-6 can be used for either air defense or ballistic missile defense, providing extended range and increased firepower; it is not intended to replace the SM-2 series of missiles.<ref>Sydney J. Freedberg, Jr., [http://breakingdefense.com/2014/08/non-standard-navy-sm-6-kills-cruise-missiles-deep-inland/ "Non-Standard: Navy SM-6 Kills Cruise Missiles Deep Inland"] – Breakingdefense.com, 19 August 2014</ref> The SM-6 Block IB includes a larger 21-inch rocket motor that sits on top of the 21-inch booster.<ref name="news.usni.org">{{Cite web|url=https://news.usni.org/2018/12/18/39724|title = Report to Congress on Aegis Ballistic Missile Defense|date = December 18, 2018}}</ref>

To enable Ballistic Missile Defense capabilities, [[signal processing]] for the SPY-1 radar was upgraded using [[commercial off-the-shelf]] components and [[open architecture]] standards.<ref>{{cite web|url=http://www.lockheedmartin.com/us/news/press-releases/2010/september/091610_aegis_bmd.html|title=Lockheed Martin Successfully Completes Formal Testing of Second-Generation Aegis Ballistic Missile Defense Capability|website=www.lockheedmartin.com|date=2010-09-16|url-status=usurped|archive-url=https://web.archive.org/web/20130127000428/http://www.lockheedmartin.com/us/news/press-releases/2010/september/091610_aegis_bmd.html|archive-date=2013-01-27}}</ref> The Multi-Mission Signal Processor (MMSP) provides Anti-Air Warfare (AAW) and Ballistic Missile Defense (BMD) capability for the first 28 ships (DDGs 51–78) of the U.S. Navy's ''Arleigh Burke''-class destroyers. This capability is also incorporated in {{USS|John Finn|DDG-113}} and following new construction, as well as Aegis Ashore. MMSP modifies transmitters of the [[SPY-1|SPY-1D]] radar to enable dual-beam operation for reduced frame times and better reaction time, and provides stability for all [[waveform]]s, allowing the radar system to detect, track, and support engagements of a broader range of threats. MMSP improves performance in [[littoral]], ducted [[Clutter (radar)|clutter]], [[electronic attack]] (EA), and [[chaff (countermeasure)|chaff]] environments and provides greater commonality in computer programs and equipment.<ref>FY 2013 Presidential Budget (PB): Navy, February 2012. Exhibit R-2, Research, Development, Test, and Evaluation (RDT&E) Budget Item Justification: Program Element (PE) 0604501N: Advanced Above Water Sensors, Page 2 of 37. [https://web.archive.org/web/20140201211211/http://www.dtic.mil/descriptivesum/Y2013/Navy/stamped/0604501N_5_PB_2013.pdf]. Accessed on 04 April 2013</ref><ref>{{cite web|url=http://www.lockheedmartin.com/us/news/press-releases/2010/april/aegis-live-tracking-041210.html|title=pr_mission_aegis-live-tracking-041210 · Lockheed Martin|website=www.lockheedmartin.com}}</ref>

As of January 2025, the U.S., Japan, and South Korea<ref>{{cite web |last1=Vavasseur |first1=Xavier |title=South Korea’s HHI Cut Steel of New KDX III Batch II Destroyer for ROK Navy |url=https://www.navalnews.com/naval-news/2021/03/south-koreas-hhi-cut-steel-on-new-kdx-iii-batch-ii-destroyer-for-rok-navy/ |date=March 2021}}</ref> are the only countries to purchase or deploy the Aegis BMD on their military ships.<ref name=RL33745/><ref>{{cite web|url=http://www.mda.mil/system/aegis_bmd.html |title=Aegis Ballistic Missile Defense |author=<!--Staff writer(s); no by-line.--> |date=8 January 2014 |website=Missile Defense Agency |publisher=US Dept. of Defense |access-date=30 January 2014 |archive-url=https://web.archive.org/web/20140125154343/http://www.mda.mil/system/aegis_bmd.html |archive-date=25 January 2014 }}</ref><ref>{{cite web|url=http://www.mda.mil/system/aegis_foreign_mil_sales.html |title=Aegis Ballistic Missile Defense - Foreign Military Sales |author=<!--Staff writer(s); no by-line.--> |date=2 January 2014 |website=Missile Defense Agency |publisher=US Dept. of Defense |access-date=30 January 2014 |archive-url=https://web.archive.org/web/20131013190230/http://www.mda.mil/system/aegis_foreign_mil_sales.html |archive-date=13 October 2013 }}</ref>

Flight III of ''Arleigh Burke''-class destroyers starting with {{USS|Jack H. Lucas}} are equipped with [[AN/SPY-6]] AESA radar from [[Raytheon]], which is 30 times more sensitive and thus can handle 30 times more targets comparing to the SPY-1D radar, providing increased air and missile defense capabilities.<ref name= 30xCapable /><ref name="spy6family">{{cite web |url=https://www.raytheonmissilesanddefense.com/capabilities/products/spy6-radars |title=U.S. Navy's SPY-6 Family of Radars |date=12 July 2020 |website=www.raytheonmissilesanddefense.com |publisher=Raytheon |access-date=12 July 2020}}</ref> Flight IIA ships will also be upgraded to SPY-6 in the future, giving them Aegis BMD capabilities.<ref name="spy6family" /><ref name= 30xCapable >Justin Katz [https://breakingdefense.com/2022/01/raytheon-to-start-back-fitting-destroyers-with-spy-6-radar/ Raytheon to start backfitting destroyers with SPY-6 radar]. Breaking Defense (11 Jan 2022)</ref>

[[Aegis Ashore]] is a land-based version of Aegis BMD which includes the AN/SPY-1 radar and command systems, and Mk 41 VLS equipped SM-3 and SM-6 missiles. Test installation exists at the [[Pacific Missile Range Facility]] in [[Hawaii]]. A [[Deveselu Military Base|site]] in [[Deveselu]], [[Romania]] is operational since 2016, and a site near [[Redzikowo]], [[Poland]] will become operational in 2022. Japan intended to deploy two systems with an [[AN/SPY-7]] AESA radar by 2021, but cancelled these plans in 2020. Possible deployments of Aegis Ashore include U.S. naval base at [[Guam]].<ref name=RL33745>{{Cite web|url=https://crsreports.congress.gov/product/details?prodcode=RL33745|title=Navy Aegis Ballistic Missile Defense (BMD) Program: Background and Issues for Congress (RL33745)|publisher=Congressional Research Service|date=2022-04-01|access-date=2022-05-08|archive-url=https://web.archive.org/web/20220401000000/https://crsreports.congress.gov/product/details?prodcode=RL33745|archive-date=2022-04-01|url-status=live}} [https://sgp.fas.org/crs/weapons/RL33745.pdf Alt URL]</ref>

U.S. Army [[United States Army Futures Command#Integrated Air and Missile Defense Battle Command System|Integrated Air and Missile Defense Battle Command System]] (IBCS) program aims to integrate Aegis BMD and its [[AN/SPY-1]] and [[AN/SPY-6]] radars with [[MIM-104 Patriot]] ([[AN/MPQ-65]]A and GhostEye), [[NASAMS]] (GhostEye MR), [[AN/TPY-2]] ([[THAAD]] and [[Ground-Based Midcourse Defense|GMD]]), and [[F-35 Lightning II]] ([[AN/APG-81]]) radars to form a [[plug and fight]] network of land, sea, and air-based sensors to help detect and track ballistic missile threats and select Patriot and THAAD surface-to-air launchers that are best positioned for a successful intercept.

In March 2025, the [[USS Pinckney]] participated in Flight Test Other-40 (FTX-40), codenamed Stellar Banshee, in which a virtualized SM-6 Block IAU interceptor was tested against a live [[Multistage rocket|multi-stage]] [[Medium-range ballistic missile|MRBM]] test target that utilized a new and previously untested type of [[Hypersonic weapon|hypersonic]] warhead, designated HTV-1.<ref>{{Cite web |last=Eyer |first=Kevin |date=2025-04-05 |title=The Illusion of BMD Testing in Ships {{!}} RealClearDefense |url=https://www.realcleardefense.com/articles/2025/04/05/the_illusion_of_bmd_testing_in_ships_1102182.html |access-date=2025-04-09 |website=www.realcleardefense.com |language=en}}</ref> The threat missile was air-launched by parachute drop from a [[Boeing C-17 Globemaster III|C-17 Globemaster III]] transport, and was successfully detected and tracked by Pickney, though no actual physical interceptor missile was fired. The test validated a variety of systems, including modern hypersonic missile tracking satellites, the Block IAU version of SM-6, and the ability of the [[Aegis Combat System|Aegis Weapon System]] to track hypersonic targets, and a new type of hypersonic test target.<ref name=":4">{{Cite web |last=Satam |first=Parth |date=2025-03-27 |title=MDA, U.S. Navy Track Hypersonic Weapon with Aegis System in Ballistic Missile Defense Test |url=https://theaviationist.com/2025/03/27/mda-us-navy-stellar-banshee-bmd-test/ |access-date=2025-04-09 |website=The Aviationist |language=en-US}}</ref> The Missile Defense Agency subsequently announced that a future live intercept of an MRBM with HTV-1 would be designated as Flight Test Aegis Weapon System-43 (FTM-43).<ref name=":4" />

===NATO European Phased Adaptive Approach===
{{main|Destroyer Squadron 60|European Phased Adaptive Approach}}
On 5 October 2011, [[U.S. Secretary of Defense]] [[Leon Panetta]] announced that the United States Navy will station four [[Aegis Ballistic Missile Defense System]] warships at [[Naval Station Rota]], Spain, to strengthen its presence in the Mediterranean Sea and bolster the ballistic missile defense (BMD) of NATO as part of the [[European Phased Adaptive Approach]] (EPAA) missile defense program. On 16 February 2012, it was reported that the ''Arleigh Burke''-class destroyers ''Donald Cook'' and ''Ross'' would be relocated to Rota during Fiscal Year 2014, followed by ''Porter'' and ''Carney'' in fiscal year 2015.<ref name="NNS120216-15">{{Cite web |title= Navy Names Forward Deployed Ships to Rota, Spain |url= http://www.navy.mil/submit/display.asp?story_id=65393 |work= NNS120216-15 |publisher= [[U.S. Department of Defense]] |date= 16 February 2012 |access-date= 11 August 2013 |archive-date= 12 October 2014 |archive-url= https://web.archive.org/web/20141012100428/http://www.navy.mil/submit/display.asp?story_id=65393 }}</ref> On 9 May 2013, Commander [[Destroyer Squadron 60]] was formally designated to perform [[U.S. Navy type commands|type-command]] administrative oversight for the four BMD-capable destroyers based at Rota, Spain.<ref name=13U102244>{{Cite web |title= ESTABLISHMENT OF COMMANDER, DESTROYER SQUADRON SIX ZERO |url= http://doni.daps.dla.mil/Directives/05000%20General%20Management%20Security%20and%20Safety%20Services/05-400%20Organization%20and%20Functional%20Support%20Services/5400.2244.pdf |work= OPNAVNOTE 5400 Ser DNS-33/13U102244 |publisher= [[United States Department of the Navy]] |date= 9 May 2013 |access-date= 11 August 2013 |archive-date= 14 October 2013 |archive-url= https://web.archive.org/web/20131014080705/http://doni.daps.dla.mil/Directives/05000%20General%20Management%20Security%20and%20Safety%20Services/05-400%20Organization%20and%20Functional%20Support%20Services/5400.2244.pdf }}</ref>

===JMSDF Aegis Afloat===
{{Main|Aegis system equipped vessels (ASEV)}}
[[File:Conceptual image of JMSDF ballistic missile defense ship, 23 December 2022.png|thumb|right|Artist's impression of future BMD ship (JSDF Photo)]]
[[File:JS Chokai（DDG-176）, USS CHANCELLORSVILLE（CG-62）and ROKS SEJONG DAEWANG（DDG-991）during Japan-U.S.-ROK Trilateral Exercise in the Sea of Japan.jpg|thumb|right|BMD maneuvers (6 October 2022)]]
[[File:JS Haguro（DDG-180）launching SM-3 Block IB. Hawaii, Nov 19, 2022.jpg|thumb|right|JS ''Haguro'' launching SM-3 Block IB missile on 19 November 2022]]
The [[Japanese Maritime Self Defense Force]] (JMSDF) currently operates four {{sclass|Kongō|destroyer|5}}, two {{sclass|Atago|destroyer|5}}, and two {{sclass|Maya|destroyer|0}} guided-missile destroyers as part of its "Aegis Afloat" program (''See table below'').

Additionally, on 31 August 2022, The [[Japan Ministry of Defense]] announced that JMSDF will operate two "[[Aegis system equipped vessels (ASV)|Aegis system equipped ships]]" (イージス・システム搭載艦 in Japanese) (''pictured'') to replace the earlier plan of Aegis Ashore installations, commissioning one by the end of fiscal year 2027, and the other by the end of FY2028. The budget for design and other related expenses are to be submitted in the form of "item requests", without specific amounts, and the initial procurement of the lead items are expected to clear legislation by FY2023. Construction is to begin in the following year of FY2024. At 20,000 tons each, both vessels will be the largest [[surface combatant]] warships operated by the JMSDF, and according to ''[[Popular Mechanics]]'', they will "arguably [be] the largest deployable surface warships in the world.".<ref name="Lia">{{Cite web |date=1 September 2022 |author=Lia Wong |title=Japanese Defense Budget Expansion Includes Two 20,000 Ton Cruisers |url=https://www.overtdefense.com/2022/09/01/japanese-defense-budget-expansion-includes-two-20000-ton-cruisers/ |website=Overt Defense |access-date=7 September 2022}}</ref><ref name="Mahadzir">{{Cite web |date=6 September 2022 |author=Dzirhan Mahadzir |title=Japan to Build Two 20,000-ton Missile Defense Warships, Indian Carrier Commissions |url=https://news.usni.org/2022/09/06/japan-to-build-two-massive-20000-ton-missile-defense-warships-indian-carrier-commissions#more-97081/ |website=[[United States Naval Institute|USNI News Blog]] |access-date=7 September 2022}}</ref><ref name=Yoshihiro>{{Cite web |date=1 September 2022 |author=Yoshihiro Inaba |title=Japan's New "Aegis Equipped Ships": What We Know So Fars |url=https://www.overtdefense.com/2022/09/01/japanese-defense-budget-expansion-includes-two-20000-ton-cruisers/ |website=NavalNews |access-date=7 September 2022}}</ref><ref name=Mizokami>{{cite web |url=https://www.popularmechanics.com/military/navy-ships/a41123804/japan-to-build-20-000-ton-warships/ |author=Kyle Mizokami |title=Japan Defense Ministry plans new Aegis destroyers in place of Aegis Ashore |date=12 September 2022 |access-date=13 September 2022 |archive-url=https://web.archive.org/web/20220912200955/https://www.popularmechanics.com/military/navy-ships/a41123804/japan-to-build-20-000-ton-warships/ |website=[[Popular Mechanics]] |archive-date=12 September 2022 |url-status=bot: unknown }}</ref>

On 6 October 2022, five warships from the United States, Japan, and South Korea held a multilateral ballistic missile defense exercise in the [[Sea of Japan]] (''pictured'') as part of the military response to [[2021–2022 North Korean missile tests|ongoing North Korean intermediate-range ballistic missile tests over the Japanese home islands]].<ref>{{cite web |url=https://news.usni.org/2022/10/06/warships-from-u-s-japan-south-korea-ballistic-missile-defense-drills-after-north-korean-missile-shots#more-97916 |title=UPDATED: Warships from U.S., Japan, South Korea Ballistic Missile Defense Drills After North Korean Missile Shots |last=LaGrone |first=Sam |date=October 6, 2022 |website=News Blog |publisher=[[United States Naval Institute]] |access-date=October 11, 2022 |quote=}}</ref><ref>{{cite web |url=https://www.navalnews.com/naval-news/2022/10/us-navy-jmsdf-and-rok-navy-conduct-bmd-exercise/ |title= US Navy, JMSDF And ROK Navy Conduct BMD Exercise |last=|first=|date=October 6, 2022 |website=NavalNews.com |publisher= |access-date=October 25, 2022 |quote=}}</ref>

On 16 November 2022, the guided-missile destroyer {{JS|Maya|DDG-179|2}} fired an SM-3 Block IIA missile, successfully intercepting the target outside the atmosphere in the first launch of the missile from a Japanese warship. On 18 November 2022, the {{JS|Haguro|DDG-180|2}} likewise fired an SM-3 Block IB missile with a successful hit outside the atmosphere (''pictured''). Both test firings were conducted at the U.S. [[Pacific Missile Range Facility]] on [[Kauai Island]], Hawaii, in cooperation with the U.S. Navy and [[U.S. Missile Defense Agency]]. This was the first time the two ships conducted SM-3 firings in the same time period, and the tests validated the ballistic missile defense capabilities of Japan's newest {{sclass|Maya|destroyer|1}}s.<ref>{{cite web |url=https://news.usni.org/2022/11/21/two-japanese-destroyers-score-in-ballistic-missile-defense-test-off-hawaii#more-99073 |title=Two Japanese Destroyers Score in Ballistic Missile Defense Test off Hawaii |last=Mahadzir |first=Dzirhan |date=November 21, 2022 |website=News Blog |publisher=[[United States Naval Institute]] |access-date=November 22, 2022 |quote=}}</ref>

On 23 December 2022, the Japanese Ministry of Defense's 2023 budget and program guidance illustrated examples of operation (運用の一例) for the Aegis-equipped naval forces of the Japanese Maritime Self Defense Force (MSDF).  The two ASEV warship would be exclusively tasked for dedicated ballistic missile defense (BDM) missions (BMD等) and operate off the Korean peninsula in the [[Sea of Japan]], allowing the other Aegis guided-missile destroyers to meet other contingencies (侵攻阻止) while operating independently to maintain the [[sea lines of communication]] (SLOC) open in the [[East China Sea]] southwest of the Japanese home islands.<ref name="LaGrone2">{{cite web |url=https://news.usni.org/2022/12/27/japanese-mod-releases-details-on-ballistic-missile-defense-ships#more-99887 |title=Japanese MoD Releases New Details on Ballistic Missile Defense Ships |last=LaGrone |first=Sam |date=December 27, 2022 |website=News Blog |publisher=[[United States Naval Institute]] |access-date=January 3, 2023 |quote=}}</ref><ref name="NavalNewsStaff1">{{cite web |url=https://www.navalnews.com/naval-news/2022/12/japanese-mod-releases-further-details-of-asev-bmd-destroyers/ |title=Japanese MoD Releases Further Details About Its Future BMD Destroyers |last= |first= |date=December 25, 2022 |website=Naval News |publisher= |access-date=January 3, 2023 |quote=}}</ref><ref name="Helfrich">{{cite web |url=https://www.thedrive.com/the-war-zone/first-rendering-of-japans-ballistic-missile-defense-ship-concept-released |title=First Rendering Of Japan's Ballistic Missile Defense Ship Concept Released |last=Emma |first=Helfrich |date=December 29, 2022 |website=The Drive |publisher= |access-date=January 3, 2023 |quote=}}</ref><ref name="MOD12232022">{{cite web |url=https://www.mod.go.jp/j/yosan/yosan_gaiyo/2023/yosan_20221223.pdf |title=Defense Programs and Budget of Japan FY Reiwa 5 (2023) Budget Overview |author=<!--Not stated--> |date= December 23, 2022 |website=Budget overview |publisher=[[Japanese Ministry of Defense]] |page=15 |access-date=2023-01-09 |quote=Japanese}}</ref>

On 22 February 2023, five warships from the United States, Japan, and South Korea held a multilateral ballistic missile defense exercise in the [[Sea of Japan]] in response to the launch of a North Korean [[Hwasong-15]] ballistic missile on 18 February 2023, landing in [[Exclusive economic zone of Japan|Japan's exclusive economic zone (EEZ)]] in the Sea of Japan, in an area 125 miles west of the island of [[Oshima (Hokkaido)|Ōshima]], which lies {{convert|30|mi|km}} west of the main island of [[Hokkaido]]. Two additional ICBMs were subsequently launched on 20 February 2023, with both landing in the Sea of Japan off the east coast of the [[Korean Peninsula]].<ref>{{cite web |url=https://news.usni.org/2023/02/22/u-s-japan-south-korea-hold-ballistic-missile-defense-drills-after-north-korean-launches#more-101115 |title=U.S., Japan, South Korea Hold Ballistic Missile Defense Drills after North Korean Launches |last=Mahadzir |first=Dzirhan |date=February 22, 2023 |website=News Blog |publisher=[[United States Naval Institute]] |access-date=February 22, 2023 |quote=}}</ref>  On 19 December 2023, United States, Japan, and South Korea announced the activation of a real-time North Korea missile warning system as well as jointly established a multi-year trilateral exercise plan in response to North Korea's continued ballistic missile launches.<ref>{{cite web |url=https://news.usni.org/2023/12/19/u-s-japan-south-korea-establish-north-korean-missile-warning-system-trilateral-exercises |title=U.S., Japan, South Korea Establish North Korean Missile |last=Mahadzir |first=Dzirhan |date=December 19, 2023 |website=News Blog |publisher=[[United States Naval Institute]] |access-date=December 22, 2023 }}</ref><ref>{{cite web |url=https://www.mod.go.jp/en/article/2023/12/c74496d9056f871004eb2983fb03d626fcc2ff94.html |title=Japan-United States-Republic of Korea Trilateral Ministerial Joint Press Statement |last= |first= |date=December 19, 2023 |website=Press Release |publisher=[[Ministry of Defense (Japan)|Japanese Ministry of Defense]] |access-date=December 24, 2023 }}</ref>

{| class="wikitable"
|+ List of JMSSDF Aegis Afloat ships
|-
! Name
! style="line-height:1.2em;" | Hull pennant no.
! Builder/shipyard
! Aegis radar
! [[Anti-ballistic missile]]
! Vertical launchers
! Commissioned
! Home port
! Flotilla
! Squadron
! Status
|-
| colspan=11 style="background:#80D8FF; text-align:center;" | {{sclass|Maya|destroyer|4}} 
|-
| {{JS|Maya|DDG-179|6}}
| DDG-179
| [[Japan Marine United|JMU, Yokohama]]
| [[AN/SPY-1|AN/SPY-1D(V)]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 96 cells (total)
| 19 March 2020 
| [[Yokosuka]]
| Escort Flotilla 1 
| Escort Squadron 1
| Active
|-
| {{JS|Haguro|DDG-180|6}}
| DDG-180
| [[Japan Marine United|JMU, Yokohama]]
| [[AN/SPY-1|AN/SPY-1D(V)]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 96 cells (total)
| 19 March 2021
| [[Sasebo, Nagasaki|Sasebo]]
| Escort Flotilla 4 
| Escort Squadron 8
| Active
|-
|colspan=11 style="background: #80D8FF;text-align:center;"|{{sclass|Atago|destroyer|4}}
|-
| {{JDS|Atago|DDG-177|6}} 
| DDG-177
| [[Japan Marine United|JMU, Yokohama]]
| [[AN/SPY-1|AN/SPY-1D(V)]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 96 cells (total)
| 15 March 2007
| [[Maizuru, Kyoto|Maizuru]]
| Escort Flotilla 3
| Escort Squadron 3
| Active
|-
| {{JDS|Ashigara|DDG-178|6}} 
| DDG-178
| [[Japan Marine United|JMU, Yokohama]]
| [[AN/SPY-1|AN/SPY-1D(V)]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 96 cells (total)
| 13 March 2008
| [[Sasebo, Nagasaki|Sasebo]]
| Escort Flotilla 2
| Escort Squadron 2
| Active
|-
|colspan=11 style="background: #80D8FF;text-align:center;"|{{sclass|Kongō|destroyer|4}}
|-
| {{JDS|Kongō|DDG-173|2}}
| DDG-173
| [[Mitsubishi Heavy Industries]]
| [[AN/SPY-1|AN/SPY-1D]] [[Passive electronically scanned array|PESA]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 90 cells (total)
| 25 March 1993
| [[Sasebo, Nagasaki|Sasebo]]
| Escort Flotilla 1
| Escort Squadron 5:
| Active
|-
| {{JDS|Kirishima|DDG-174|2}} 
| DDG-174
| [[Mitsubishi Heavy Industries]]
| [[AN/SPY-1|AN/SPY-1D]] [[Passive electronically scanned array|PESA]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 90 cells (total) 
| 16 March 1995 
| [[Yokosuka, Kanagawa|Yokosuka]]
| Escort Flotilla 2
| Escort Squadron 6
| Active
|-
| {{JDS|Myōkō|DDG-175|2}} 
| DDG-175
| [[Mitsubishi Heavy Industries]]
| [[AN/SPY-1|AN/SPY-1D]] [[Passive electronically scanned array|PESA]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 90 cells (total)
| 14 March 1996
| [[Maizuru, Kyoto|Maizuru]]
| Escort Flotilla 3
| Escort Squadron 3
| Active
|-
| {{JDS|Chōkai|DDG-176|2}}
| DDG-176
| [[IHI Corporation]]
| [[AN/SPY-1|AN/SPY-1D]] [[Passive electronically scanned array|PESA]]
| [[RIM-161 Standard|SM-3 Standard missile]]
| [[Mark 41 Vertical Launching System|Mark 41]]: 90 cells (total)
| 20 March 1998
| [[Sasebo, Nagasaki|Sasebo]]
| Escort Flotilla 4
| Escort Squadron 8
| Active
|-
|}