In-flight photo of GE+EA (its grey squadron code barely visible between German Balkenkreuz insignia). WW2 Colour T-34 m. 42/43 (with Balkenkreuz) | narod.ru German WW2 Balkenkreuz (Balken Cross) insignia used on ground vehicles and aircrafts was a variation of WW1 Imperial Eisernes Kreuz (Iron Cross). Iron Cross | Wiki
Symbol was adopted by Luftstreitkräfte (Imperial German Army Air Service) in April 1918, used until WW1 end in Nov 1918. Post WW1 Germany forbidden to possess airforce or armored forces afterwards, thus ended its usage. Although para-military armor car police force (such as Ehrhardt E-V/4) was permitted to maintain government stability, especially against pro-Communist insurrections such as 1919 Spartacist Uprising in Berlin.
Luftstreitkräfte | Wiki
Spartacist uprising | Wiki
Ehrhardt E-V/4 | Wiki
Insignia was formally re-activated in 1935 during Germany's rearmament campaign, and used until WW2 ending in May 1945. To eliminate vestiges to Nazi-era, post WW2 West Germany reactivated WW1-style Balkenkreuz symbol for its armed forces. This was also adopted by remnants of East Germany after its collapse in 1989 and absorption into the unified Germany.
East Germany | Wiki
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