What is D-Day? Published June 10, 2024 By Miriam Thurber Air Force Recruiting Service Colleville-Sur Mer, France -- 01:30 Second Lt. Madison Marsh, crowned Miss America 2024, details the history of D-Day and explains its lasting impact, including what it means for service today, while in Normandy, France on June 6, 2024. This year marks the 80th anniversary of Operation Overlord when Allied forces landed on the beaches of Normandy in the largest air, land and sea invasion ever executed. (U.S. Air Force video by Miriam Thurber)