France honors World War II veterans on 75th anniversary of D-Day (18 images)

From left to right, First lady Melania Trump, President Donald Trump, French President Emmanuel Macron, and his wife, Brigitte attend the commemoration ceremony of the 75th anniversary of D-Day landing at WWII's Normandy American Cemetery and Memorial in Colleville-sur-mer, France on Thursday. Every U.S. president since Ronald Reagan has visited Normandy on the D-Day anniversary to pay tribute to those lost in the battle. Photo by Eco Clement/UPI

Trump greets a veteran at the event. The Allied invasion of Normandy -- called Operation Overlord, or D-Day -- was the largest seaborne invasion in history and set the stage for what ultimately proved to be an Allied victory on the Western Front of World War II. Photo by Eco Clement/UPI

Trump shakes a veteran's hand. Tens of thousands of British, Canadian and U.S. troops arrived at five beachheads in the region either by parachute or through amphibious landings by sea on June 6, 1944, to beat back German troops who had control over much of France. Photo by Eco Clement/UPI

World War II veterans, heads of state and history buffs gathered Thursday for what's perhaps the last major anniversary for living D-Day participants. Photo by Eco Clement/UPI