 The visual appearance of Darth Vader in his all-black uniform combined with his devout obedience to the Emperor has allusion to the black-uniformed Nazi "Schutzstaffel" (SS).The uniforms of Imperial military officers also bear resemblance to uniforms used in Nazi Germany as well as nineteenth-century Germany's "ulans" (mounted lancers)—who wore a tunic, riding breeches, and boots like the Empire's officers wear—as well as the Imperial officers' cap resembling the field caps historically worn by German and Austrian troops.In addition to Nazi Germany, there was also at least one portion of the Galactic Empire that was based on the Soviet Union, which is the various military personnel and TIE Fighters are flying in formation as Palpatine arrives on the Death Star in "Return of the Jedi".