Established in 1918, the 101st Division was first constituted as an airborne unit in 1942. During World War II, it was renowned for its role in Operation Overlord (the D-Day landings and airborne landings on 6 June 1944, in Normandy, France), Operation Market Garden, the liberation of the Netherlands and its action during the Battle of the Bulge around the city of Bastogne, Belgium. During the Vietnam War, the 101st Airborne Division fought in several major campaigns and battles, including the Battle of Hamburger Hill in May 1969.