Editing Nazi concentration camp badge (section)

== Postwar use ==
Triangle-motifs appear on many postwar memorials to the victims of the Nazis. Most triangles are plain while some others bear [[Nazi concentration camp badges#Other badges|nationality-letters]]. The otherwise potentially puzzling designs are a direct reference to the identification patches used in the camps. On such monuments, typically an inverted (point down, base up) triangle (especially if red) evokes all victims, including also the [[Holocaust#Non-Jewish|non-Jewish victims]] like Poles and other Slavs, communists, homosexuals, Roma and Sinti (see [[Porajmos]]), people with disability (see [[Action T4]]), [[Nazi crimes against Soviet POWs|Soviet POWs]] and [[Jehovah's Witnesses]].  An inverted triangle colored pink would symbolize gay male victims.  A non-inverted (base down, point up) triangle and/or a yellow triangle is generally more evocative of the Jewish victims.{{citation needed|date=May 2025}}

<gallery class="center" widths="180" heights="180" caption="Some examples of camp triangle emblems on monuments and related uses">
File:KZ Sachsenhausen - zentrales Mahnmal.JPG|At [[Sachsenhausen concentration camp|Sachsenhausen]]
File:Todesmarsch Gedenkstein Breitenfeld.JPG|A [[Mittelbau-Dora|Dora]] ''Todesmarsch'' [[Death marches (Holocaust)|(death march)]] roadside tablet marked only with the date and a red triangle
File:Holocaust Memorial in Estonia.jpg|On the [[Klooga concentration camp|Klooga]] Jewish victims' memorial
File:Crawinkel Gedenktafel.JPG|On a [[Buchenwald]] ''Todesmarsch'' [[Death marches (Holocaust)|(death march)]] route historical marker
File:Death March Memorial Plaque, Oranienburg.jpg|On a [[Sachsenhausen concentration camp|Sachsenhausen]] death march route [[historical marker]]
File:Belower-Damm-Wittstock-Dosse-Mahnmal.jpg|Monument (in the village of [[Grabow-Below]]) for [[Ravensbrück]] death march victims
File:Denkmal KZ Woebbelin4.jpg|On a [[Wöbbelin concentration camp|Wöbbelin]] memorial stone
File:Gedenkstätte Lindenring (2).jpg|Boulder (in Lindenring) for 2,000 women victims of [[Ravensbrück]]
File:Cenoteph of Cap Arcona.JPG|On a ''[[SS Cap Arcona (1927)|Cap Arcona]]'' incident memorial
File:Neustadt-Glewe VVN-Denkmal 2008-01-03.jpg|At the [[Neustadt-Glewe]] concentration camp memorial
File:French monument Mauthausen 1243.JPG|F-triangle at [[Mauthausen-Gusen concentration camp|Mauthausen-Gusen]] honors French victims
File:Croix du Prisonnier Politique 1940-1945.jpg|B-triangle incorporated into the Belgian [[Political Prisoner's Cross 1940–1945|Political Prisoner's Cross]]
File:KZ-Hinzert-Plakette-Nacht-und-Nebel.jpg|F-triangle at [[Hinzert concentration camp|Hinzert]] honors French victims, especially of the ''[[Nacht und Nebel]]'' program
File:Han Seelhorst Mahnmal KZ Opfer 01.PNG|On a monument to [[Neuengamme concentration camp|Neuengamme]] victims in [[Hamburg]], where the letters KZ are not nationality-letters, but rather are the German abbreviation for ''Konzentrationslager''<br />(concentration camp)
File:Ludwigsfelde Friedhof Gedenkstein Widerstandskämpfer.JPG|On a memorial to victims killed at Genshagen (right panel), where the letters KZ are not nationality-letters but rather are the German abbreviation for ''Konzentrationslager''<br />(concentration camp)
File:Denkmal für die Opfer der NS-Konzentrationslager Zgorzelec.JPG|P-triangle at a Zgorzelec memorial
File:Krzyż Oświęcimski Szymona Klugera, MZ-326-O 02.jpg|P-triangle on the [[Auschwitz Cross|Polish medal for camp victims]]
File:Memorial with Prisoners Triangle Badges and Star of David Badge - Dachau Concentration Camp Site - Dachau - Bavaria - Germany.jpg|Various badges on a [[Dachau concentration camp|Dachau]] memorial{{note|Photo by Adam Jones.}}
File:In memory of homosexual.JPG|[[Pink triangle]] (''Rosa Winkel'' in German) memorial for gay men killed at [[Buchenwald]]
File:Gedenktafel Rosa Winkel Nollendorfplatz.jpg|In the Berlin [[Nollendorfplatz (Berlin U-Bahn)|Nollendorfplatz subway station]], a pink triangle plaque honors gay male victims.{{note|Photo by Manfred Brueckels.}}
File:Ac.homomonument.jpg|Amsterdam's ''[[Homomonument]]'' uses pink triangles symbolically to memorialize gay men killed in the [[Holocaust]] and also victims of [[Gay bashing|anti-gay violence generally]].
File:Memorial_to_the_French_victims_of_Dachau_Concentration_Camp_at_Pere_Lachaise_Cemetery_in_Paris.jpg|Memorial to French victims of [[Dachau Concentration Camp]] at [[Père Lachaise Cemetery]] in [[Paris]].
File:Zittau Ehrenmal für die Opfer des Faschismus (9899).jpg|Triangle emblem on the memorial to Nazi-era forced labor deaths at the truck factory in [[Zittau]]
File:Pink triangle on Twin Peaks (19055079410).jpg|Every year, a pink triangle is erected on [[Twin Peaks (San Francisco)|Twin Peaks]] in San Francisco during [[San Francisco Pride|Pride weekend]].
</gallery>

=== 2020 Trump campaign ===

In June 2020, the [[Donald Trump 2020 presidential campaign|re-election campaign]] of [[Donald Trump]] posted an advertisement on Facebook stating that "Dangerous MOBS of far-left groups are running through our streets and causing absolute mayhem" and identifying them as "[[Antifa (United States)|ANTIFA]]", accompanied by a graphic of a downward-pointing red triangle. The ads appeared on the Facebook pages of Donald Trump, the Trump campaign, and Vice President [[Mike Pence]]. Many observers compared the graphic to the symbol used by the Nazis for identifying political prisoners such as [[Communism|communists]], [[Social democracy|social democrats]] and [[Socialism|socialists]].  Many noted the number of ads – [[88 (number)#In white nationalism|88]] – which is associated with [[Neo-Nazism|neo-Nazis]] and white supremacists.<ref>{{Cite web|last=Breland|first=Ali|title=Nazis put this symbol on political opponents' arms. Now Trump is using it.|url=https://www.motherjones.com/2020-elections/2020/06/trump-upside-down-triangle-antifa/|access-date=2020-06-19|website=Mother Jones|language=en-US}}</ref><ref>{{Cite web|last=Morrison|first=Sara|date=2020-06-18|title=Facebook takes down another Trump campaign ad, this time for Nazi imagery|url=https://www.vox.com/recode/2020/6/18/21295226/facebook-trump-campaign-nazi-symbol-antifa|access-date=2020-06-19|website=Vox|language=en}}</ref><ref>{{Cite web|last=Rodrigo|first=Chris Mills|date=2020-06-18|title=Facebook takes down Trump ads featuring symbol used by Nazis to mark political prisoners|url=https://thehill.com/policy/technology/503421-facebook-takes-down-trump-ads-featuring-symbol-used-by-nazis-to-mark|access-date=2020-06-19|website=TheHill|language=en}}</ref>

As an example of the public outcry against the use of the downward-pointing red triangle, as reported by [[MotherJones.com|MotherJones]], the Twitter account (@jewishaction),<ref>{{Cite Twitter profile|jewishaction}}</ref> the account of Bend the Arc: Jewish Action,<ref>{{cite web |url=https://www.bendthearc.us/ |title=Home |website=bendthearc.us}}</ref> a Progressive Jewish site stated:<blockquote>"The President of the United States is campaigning for reelection using a Nazi concentration camp symbol.
Nazis used the red triangle to mark political prisoners and people who rescued Jews.
Trump & the RNC are using it to smear millions of protestors.

Their masks are off. pic.twitter.com/UzmzDaRBup"<ref>{{Cite web|last=Breland|first=Ali|title=Nazis put this symbol on political opponents' arms. Now Trump is using it.|url=https://www.motherjones.com/2020-elections/2020/06/trump-upside-down-triangle-antifa/|access-date=2021-12-22|website=Mother Jones|language=en-US}}</ref></blockquote>Facebook removed the campaign ads with the graphic, saying that its use in this context violated their policy against "organized hate".<ref>{{Cite web|last=Shannon|first=Joel|title=Nazis used red triangles to mark political prisoners. That symbol is why Facebook banned a Donald Trump reelection campaign ad.|url=https://www.usatoday.com/story/news/nation/2020/06/18/nazis-used-red-triangles-they-symbol-organized-hate/3217951001/|access-date=2021-12-22|website=USA TODAY|language=en-US}}</ref><ref>{{Cite web|url=https://www.newsweek.com/history-red-triangle-used-concentration-camps-team-trump-facebook-ad-1511897|first=James|last=Crowley|title=The History of The Concentration Camp Badge in a Team Trump Ad For Facebook|website=[[Newsweek]]|date=18 June 2020|access-date=16 December 2024}}</ref><ref>{{Cite web|url=https://forward.com/fast-forward/449073/trump-antifa-nazi-concentration-camp/|title=Facebook removes Trump ad that identifies Antifa with red triangle similar to Nazi symbol|first=Ari|last=Feldman|website=The Forward|date=18 June 2020 }}</ref><ref>{{Cite web|url=https://www.dailydot.com/debug/trump-ad-nazi-symbol/|first=Claire|last=Goforth|title=Trump campaign accused of using a Nazi symbol in Facebook ad|date=27 January 2021|website=The Daily Dot|access-date=16 December 2024}}</ref><ref>{{Cite web|title=Facebook removes Trump ads for violating 'organized hate' policy|url=https://www.nbcnews.com/tech/tech-news/facebook-removes-trump-ads-violating-organized-hate-policy-n1231468|access-date=2020-06-18|website=NBC News|date=18 June 2020 |language=en}}</ref><ref>{{Cite news|last=Stanley-Becker|first=Isaac|title=Facebook removes Trump ads with symbol once used by Nazis to designate political prisoners|url=https://www.washingtonpost.com/politics/2020/06/18/trump-campaign-runs-ads-with-marking-once-used-by-nazis-designate-political-prisoners/|access-date=2020-06-18|newspaper=Washington Post|language=en|url-access=limited}}</ref> The Trump campaign's communications director wrote, "The red triangle is a common Antifa symbol used in an ad about Antifa." Historian Mark Bray, author of ''[[Antifa: The Anti-Fascist Handbook]]'', disputed this, saying that the symbol is not associated with Antifa in the United States.<ref>{{Cite web|last=Karni|first=Annie|date=June 18, 2020|title=Facebook removes Trump ads displaying symbol used by Nazis|url=https://www.nytimes.com/2020/06/18/us/politics/facebook-trump-ads-antifa-red-triangle.html|website=The New York Times|url-access=limited}}</ref>

=== Israel–Hamas war ===
Some sources have suggested that [[Hamas red triangle|the inverted red triangle symbol used by Hamas]] in its propaganda videos is reminiscent of the same red triangle used by the Nazis, with regards to [[antisemitism during the Gaza war]]. However, the Nazis used the inverted red triangle to identify prisoners with political views opposed to Nazism, not necessarily Jewish prisoners.<ref>{{Cite web |date=4 June 2024 |title=What does the inverted red triangle used by some pro-Palestinian demonstrators symbolize? |url=https://www.cbc.ca/news/canada/gaza-red-triangle-meaning-1.7216788 |website=CBC}}</ref><ref>{{Cite web |last=Markoe |first=Lauren |date=2024-06-13 |title=Vandals painted a red triangle on the home of a Jewish museum director. What does it mean? |url=https://forward.com/fast-forward/622549/red-triangle-inverted-hamas-symbol-brooklyn/ |access-date=2024-07-29 |website=The Forward |language=en}}</ref> However, some have compared [[Palestinian resistance]] to [[Ghetto uprisings]].<ref>{{cite web | title = The Gaza Ghetto Uprising | url = https://www.counterpunch.org/2023/10/09/the-gaza-ghetto-uprising/ | date = 9 October 2023 }}</ref>