Colonel Richard Ernest Dupuy (March 24, 1887 – April 25, 1975) was a United States Army officer and military historian. Dupuy was a reporter with the New York Herald before his National Guard artillery unit was called up to serve in World War I. He transferred to the regular army after the war, serving in a number of public relations roles. During World War II, he served as acting director of public relations at Supreme Headquarters Allied Expeditionary Force, under General Dwight D. Eisenhower. On D-Day – June 6, 1944 – Dupuy was the first to announce on radio that the invasion of Normandy was taking place. He was also present for the signing of the German Instrument of Surrender in Berlin on May 8, 1945. Dupuy retired from the Army after the war and became a prolific military historian,