Marines from Headquarters and Service Battalion, Headquarters Marine Corps, Henderson Hall and Marine Barracks Washington, D.C. listen as a French guide at the Normandy American Cemetery and Memorial explains how American troops landed at Omaha Beach, June 6, 1944, during World War Two in Coleville sur Mer, France, May 25, 2016. The cemetery overlooks Omaha Beach and is the final resting place of more than 9,000 American service members and honors more than 1,500 American service members who are missing in action. - Marines from Headquarters and Service Battalion, Headquarters Marine Corps, Henderson Hall and Marine Barracks Washington, D.C. listen as a French guide at the Normandy American Cemetery and Memorial explains how American troops landed at Omaha Beach, June 6, 1944, during World War Two in Coleville sur Mer, France, May 25, 2016. The cemetery overlooks Omaha Beach and is the final resting place of more than 9,000 American service members and honors more than 1,500 American service members who are missing in action.