Moritz Albrecht Franz Friedrich Fedor von Bock (3 December 1880 – 4 May 1945) was a German Field Marshal who served in the German army during the Second World War. As a leader who lectured his soldiers about the honor of dying for the German Fatherland, he was nicknamed "Der Sterber" (literally, ambiguously, and ironically: "The Dier"). Bock served as the commander of Army Group North during the Invasion of Poland in 1939, commander of Army Group B during the Invasion of France in 1940, and later as the commander of Army Group Center during the attack on the Soviet Union in 1941; his final command was that of Army Group South in 1942.