U.S. President Donald Trump attends a ceremony to mark the 75th anniversary of the D-Day landing at the Normandy American Cemetery and Memorial in Colleville-sur-Mer, Normandy, France, June 6, 2019. A commemoration was held on Thursday in Normandy, north France, to mark the 75th anniversary of the D-Day landings against Nazi forces in World War II. (Xinhua/Mao When)