The 49th Armored Division —nicknamed the "Lone Star"— was an armored division of the Texas Army National Guard during the Cold War. Active from 1947, the division formed part of the Texas Army National Guard together with the 36th Infantry Division. It was called up for active duty between 1961 and 1962 during the Berlin Crisis. In 1968 both Texas divisions were inactivated and used to form separate units. The 49th Armored was reformed in 1973 as the sole Texas division. When reflagged as the 36th Infantry Division in 2004, it was the last armored division remaining in the United States Army National Guard. History After the end of World War II, the United States National Guard was reorganized and expanded from its prewar size. Initial War Department unit allocations submitted to states for review in early February 1946 gave the 49th Armored Division to Texas and New Mexico, with the latter receiving one combat command headquarters and its subordinate units as well as field artillery and engineer battalions. As the governor of New Mexico desired to continue his state's prewar antiaircraft units, the 49th Armored Division was made all-Texas and New Mexico received the 111th Antiaircraft Artillery Brigade. The division, whose units were accepted by the Texas adjutant general on 2 July 1946, included two combat commands and a reserve command with the 145th, 146th, and 147th Tank Battalions and the 145th, 146th, and 147th Armored Infantry Battalions. The division artillery included the 105 mm howitzer-equipped 645th, 646th, and 647th Armored Field Artillery Battalions. Division troops included the 49th Mechanized Cavalry Reconnaissance Squadron and the 386th Armored Engineer Battalion as well as other support units. It and the New Jersey 50th Armored Division were the only armored divisions in the National Guard at the time. A number of the original divisional units received federal recognition from the National Guard Bureau on 27 February 1947, a date used thereafter as the formation's "birthday", including the division headquarters at Camp Mabry in Austin. In 1947, all four battalions of the 144th Infantry Regiment were placed into the Division as mechanized infantry units. The division headquarters location changed to Fort Worth on 4 August 1949 and to Dallas on 31 August 1950. Beginning in the northern and northeastern areas of the State, there were 111 units in 56 Texas cities by 1952. In September 1961, an executive order alerted the division for