Karl Rudolf Gerd von Rundstedt was a German field marshal in the Wehrmacht of Nazi Germany during World War II. He was recalled at the beginning of World War II as commander of Army Group South in the invasion of Poland. He commanded Army Group A during the Battle of France, and requested the Halt Order during the Battle of Dunkirk. He was promoted to the rank of Field Marshal in 1940. In the invasion of the Soviet Union, he commanded Army Group South, responsible for the largest encirclement in history, the Battle of Kiev. He was relieved of command in December 1941, but was recalled in 1942 and appointed Commander-in-Chief in the West. He was dismissed after the German defeat in Normandy in July 1944, but was again recalled as Commander-in-Chief in the West in September, holding this post until his final dismissal by Adolf Hitler in March 1945.