After Operation Iraqi Freedom II, the 12th Cavalry Regiment underwent a major transition as elements from 2/7CAV, 1/9CAV, and 3/8CAV were reflagged and combined with the regiment to create the battalions currently in service. The 2nd Battalion, Twelfth Cavalry Regiment, as well as 2/7CAV and 1/9CAV moved to the 4th Brigade of the 1st Cavalry Division. 4th "Long Knife" Brigade Combat Team, 1st Cavalry Division cased its colors in an inactivation ceremony Thursday, 17 Oct. 2013, at Fort Hood's Cooper Field. The 1st Battalion, Twelfth Cavalry Regiment, 2/7CAV, and 3/8CAV now operate at Fort Hood, Texas, and are now with the 3rd Brigade Combat Team, 1st Cavalry Division.