171st Field Artillery Regiment
The 171st Field Artillery Regiment is a military unit created from part of the "B" Battery of the 1st Battalion of the 45th infantry division of the United States Army. It was raised in 1963 and is now based at Weatherford, Oklahoma forming part of the 45th Fires Brigade of the Oklahoma Army National Guard. Remaining representatives have been engaged in US anti-terrorism campaigns. History The unit was raised on 1 April 1963, at the Oklahoma Army National Guard. Under the combat arms regimental system, it first formed a parent regiment from existing units to create its 1st Battalion as a unit of the 45th Infantry Division. On 1 February 1968, the unit was re-organised and on 1 May 1972 re-designated as the 171st. On 1 June 1989, the 171st was withdrawn from the combat arms regimental system and reorganized under the United States Army regimental system. On 1 December 1991, C Battery was allotted from the 1st Battalion to the Texas Army National Guard. On 3 September 2002, the 171st was ordered into federal service at home stations. One year later, it reverted to state control. On 1 October 2005 the unit was re-designated the "171st Field Artillery Regiment".