May 1946 in order that the regiment could fulfill its occupation duties, and was restored as the 11th Armored Cavalry Regiment and inactivated in November 1948. Blackhorse was brought back into active status 1 April 1951 at Camp Carson, Colorado. In 1954, the regiment transferred to Fort Knox, Kentucky to complete its training in armored tactics. The Blackhorse Regiment rotated to southern Germany in May 1957, relieving the 6th ACR, and assumed the mission of patrolling the German-Czechoslovak border until its return to the United States in 1964. The Blackhorse arrived in Vietnam on 7 September 1966. Second Squadron spearheaded Operation Fish Hook into Cambodia on 1 May 1970, surrounding a North Vietnamese logistics center. During the drawdown of U.S. forces in Vietnam in early 1972, the 11th ACR was inactivated in stages (Air Troop inactivated 20 March 1972 in Vietnam; 2d Squadron inactivated 6 April 1972 in Vietnam) and subsequently reactivated in Germany (Air Troop and 2d Squadron activated 17 May 1972 in Germany) by reflagging the 14th Armored Cavalry Regiment. The unit, based at Downs Barracks, had the mission of patrolling the East-West German border at OP ALPHA. During the late 1980s the 11th's 4th Squadron (Air) operated the first air assault school in Europe, known as the Blackhorse Air Assault School, based in Fulda. After the Soviet Union dissolved in December 1991 the regiment ended its seventeen-year station along the Iron Curtain. The Blackhorse Regiment deployed an aviation task force on 10 April 1991 to Turkey for Operation Provide Comfort, an operation to support the Kurdish relief effort. One month later, the three maneuver squadrons (1st, 2d and 3d) along with the regiment's support squadron, deployed to Kuwait for Operation Positive Force, an operation to secure Kuwait so it could rebuild from the war. By October, the regiment had completed its missions in Turkey and Kuwait and returned to Fulda. As the need for US forces in Europe decreased, the Blackhorse Regiment was inactivated in a ceremony on 15 October 1993, and the remaining troops departed Germany in March 1994. Training the force Reactivated again on 16 October 1994, the 11th Armored Cavalry Regiment now serves as the Army's Opposing Force at the National Training Center. The regiment portrays a determined opposing force that trains US forces in the basic principles of army operations and challenges all the battlefield operating systems. As the 2nd Brigade Tactical Group,