The June 6, 1944, order of the day was issued by Supreme Commander of the Allied Expeditionary Force General Dwight D. Eisenhower to Allied forces on the eve of D-Day, the first day of the invasion of Normandy. The message was intended to impress upon the troops the importance of their mission which Eisenhower called a "Great Crusade". Eisenhower had been drafting the order since February 1944 and recorded a spoken version on May 28, that was broadcast on British and American radio on D-Day.