The United States Disciplinary Barracks (USDB), colloquially known as Leavenworth, is a military correctional facility located on Fort Leavenworth, a United States Army post in Kansas. It is one of two major prisons built on Fort Leavenworth property, the other is the military Midwest Joint Regional Correctional Facility, which opened on 5 October 2010. Together the facilities make up the Military Corrections Complex which is under the command of its commandant, who holds the rank of colonel, and serves as both the Army Corrections Brigade Commander and Deputy commander of The United States Army Corrections Command.