Luxembourg Army Color Guard, U.S. Air Force Airmen assigned to the 52nd Fighter Wing, Spangdahlem Air Base, Germany, and U.S. Army Soldiers assigned to 18th Military Police Brigade, Grafenwoehr, Germany, salute during a Memorial Day ceremony at the Luxembourg American Cemetery and Memorial in Luxembourg, May 28, 2016. The holiday serves as an opportunity to pause and remember the sacrifices of more than one million Soldiers, Sailors, Airmen, Marines and Coast Guardsmen who gave their lives in defense of freedom. (U.S. Air Force photo by Staff Sgt. Joe W. McFadden/Released)