The first 4,000 paratroopers of the 101st Airborne Division arrive in Vietnam, landing at Cam Ranh Bay. They made a demonstration jump immediately after arriving, observed by Gen. William Westmoreland and outgoing Ambassador (formerly General) Maxwell Taylor. Taylor and Westmoreland were both former commanders of the division, which was known as the “Screaming Eagles.” The 101st Airborne Division has a long and storied history, including combat jumps during the invasion of Normandy on June 6, 1944, and the subsequent Market-Garden airborne operation in the Netherlands. Later, the division distinguished itself by its defense of Bastogne during the Battle of the Bulge. The 1st Brigade fought as a separate brigade until 1967, when the remainder of the division arrived in Vietnam. The combat elements of the division consisted of 10 battalions of airmobile infantry, six battalions of artillery, an aerial rocket artillery unit armed with rocket-firing helicopters, and an air reconnaissance unit. Another unique feature of the division was its aviation group, which consisted of three aviation battalions of assault helicopters and gunships. The majority of the 101st Airborne Division’s tactical operations were in the Central Highlands and in the A Shau Valley farther north. Among its major operations was the brutal fight for Ap Bia Mountain, known as the “Hamburger Hill” battle. The last Army division to leave Vietnam, the remaining elements of the 101st Airborne Division returned to Fort Campbell, Kentucky, where today it is the Army’s only airmobile division. During the war, troopers from the 101st were awarded 17 Medals of Honor for bravery in combat. The division suffered almost 20,000 soldiers killed or wounded in action in Vietnam, over twice as many as the 9,328 casualties it suffered in World War II.