The Vietnam War Veterans Recognition Act, signed into law in 2017, designates March 29 as National Vietnam War Veterans Day. On March 29, 1973, Military Assistance Command, Vietnam (MACV) was disbanded and the last U.S. combat troops departed the Republic of Vietnam. In 1965, the 173rd Airborne Brigade became the first major U.S. Army combat unit to enter Vietnam, bringing the fight to the enemy in some of the most challenging terrain of the war. From the Central Highlands to the Mekong Delta, #