nazis-halder-leeb-reinhardt Halder (left) was responsible for organizing and perpetrating war crimes on the Eastern Front but ended up working for the U.S. after the war. Leeb (center) was tried at Nuremberg for war crimes in the East but received a light sentence. Reinhardt (right) was convicted of war crimes and crimes against humanity, but was released early in 1952. (Ullstein Bild Dtl., Right: Bettmann/Getty images) Ullstein Bild Dtl., Right: Bettmann/Getty images