After the United States entered World War II, General George C. Marshall assigned Eisenhower to the War Plans Division in Washington, D.C. Eisenhower became the commander of American forces in Britain in June 1942 and was assigned to lead Operation Torch, the Allied invasion of French North Africa. After the success of Operation Torch, Eisenhower led the successful Allied invasion of Tunisia, forcing the surrender of all Axis forces in May 1943. Eisenhower led the opening phases of the Italian campaign, but was subsequently assigned to lead the Allied invasion of Western Europe in December 1943. He served as the supreme commander of Operation Overlord, the Allied invasion of Normandy, and took command of subsequent operations in France. Following the success of Operation Overlord, the Allies quickly took control of much of Western Europe, but the Germans launched a major counter-attack in the Battle of the Bulge. German resistance quickly collapsed following the Allied victory in that battle, and Eisenhower accepted the surrender of Germany in May 1945.