 Complete the following phrase:  The Russian Protective Corps , ,  Ruski zaštitni korpus was an armed force composed of anti-communist White Russian émigrés that was raised in the German occupied territory of Serbia during World War II. Commanded for almost its whole existence by Lieutet General Boris Shteifon, it served primarily as a guard force for factories and mines between late 1941 and early 1944, initially as the Separate Russian Corps then Russian Factory Protective Group. It was incorporated into the Wehrmacht on 1 December 1942 and later clashed with the communist-led Yugoslav Partisans and briefly with the Chetniks. In late 1944, it fought against the Red Army during the Belgrade Offensive, later withdrawing to Bosnia and Slovenia as the Germans retreated from the Balkans. After Shteifons death in Zagreb, the Independent State of Croatia, on 30 April 1945, Russian Colonel Anatoly Rogozhin took over and led his troops farther north to surrender to the British in southern Austria. Unlike most other Russian formations that fought for Nazi Germany, Rogozhin and his men, who were not formally treated as Soviet citizens, were exempt from 