Omaha Beach was one of five Allied beach landing sectors of the amphibious assault component of Operation Overlord during the Second World War. On June 6, 1944, the Allies invaded German-occupied France with the Normandy landings. "Omaha" refers to an 8-kilometer (5 mi) section of the coast of Normandy, France, facing the English Channel, from west of Sainte-Honorine-des-Pertes to east of Vierville-sur-Mer on the right bank of the Douve river estuary.