Dwight D. Eisenhower
The D-Day Normandy landings on June 6, 1944, were costly but successful. A month later, the invasion of Southern France took place, and control of forces in the southern invasion passed from the AFHQ to the SHAEF. Many prematurely considered that victory in Europe would come by summer's end—however the Germans did not capitulate for almost a year. From then until the end of the war in Europe on May 8, 1945, Eisenhower, through SHAEF, commanded all Allied forces, and through his command of ETOUSA had administrative command of all U.S. forces on the Western Front north of the Alps. He was ever mindful of the inevitable loss of life and suffering that would be experienced on an individual level by the troops under his command and their families. This prompted him to make a point of visiting every division involved in the invasion. Eisenhower's sense of responsibility was underscored by his draft of a statement to be issued if the invasion failed. It has been called one of the great speeches of history:

Q: When did the Normandy invasion occur?
June 6, 1944