The decision to undertake a cross-channel invasion of continental Europe within the next year was taken at the Trident Conference, held in Washington in May 1943. The Allies initially planned to launch the invasion on May 1, 1944, and a draft of the plan was accepted at the Quebec Conference in August 1943. General Dwight D. Eisenhower was appointed commander of Supreme Headquarters Allied Expeditionary Force (SHAEF). General Bernard Montgomery was named as commander of the 21st Army Group, which comprised all of the land forces involved in the invasion.