Русский корпус
In addition to the Serbian State Guard regulars, there were three officially organised German auxiliary armed groups formed during the German occupation. These were the Serbian Volunteer Corps, the Russian Corps, and the small Auxiliary Police Troop composed of Russian Volksdeutsche. The Germans also used two other armed groups as auxiliaries, the Chetnik detachments of Kosta Pećanac which started collaborating with the Germans from the time of the Nedić government's appointment in August 1941, and later the 'legalised' Chetnik detachments of Mihailović. Some of these organizations wore the uniform of the Royal Yugoslav Army as well as helmets and uniforms purchased from Italy, while others used uniforms and equipment from Germany.