
Red triangle
An upright red triangle was for “traitors” accused of providing shelter or escape from the Nazis or for military deserters. No one was allowed to organize against Hitler’s ideology.

Letter “U”
Hungary was an axis power instrumental in constructing and organizing the ghettos, into which Jews were herded within their own territory. Hungarians who resisted the Nazis were imprisoned and labeled with a “U,” after “Ungarn,” German for Hungarian.

Letter “J”
Axis powers annexed Yugoslavia in 1941. As was the case in Belgium, the Yugoslavs (Jugoslawien in German) were not equipped to fight the economic and military strength of the German army. The captured Yugoslavs received the letter “J”.

Letter “H”
When the Third Reich seized the Netherlands in 1940, the Dutch took a stance of neutrality to resist the Nazi regime. Hitler forced their surrender with the Rotterdam Blitz, bombing the country by air raid. An insignia with the letter “H” (for Holländer) was used to classify the interned Dutch.
Brown triangle
A brown, inverted triangle was used to classify Romani males, with the letter “Z” to display their Zigeuner (“Gypsy”) origins.
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