Fort Leavenworth

Fort Leavenworth is a United States Army facility located in Leavenworth County, Kansas, immediately north of the city of Leavenworth in the upper northeast portion of the state. It is the oldest active United States Army post west of Washington, D.C., having been in operation for over 180 years. Fort Leavenworth has been historically known as the "Intellectual Center of the Army".

Forth Leavenworth was also the origin of the Buffalo Soldiers who were originally members of the U.S. 10th Cavalry Regiment of the United States Army, formed on September 21, 1866 at Fort Leavenworth, Kansas. The nickname was given to the "Negro Cavalry" by the Native American tribes they fought; the term eventually became synonymous with all of the African-American regiments formed in 1866:

During the country's westward expansion, Fort Leavenworth was a forward destination for thousands of soldiers, surveyors, immigrants, American Indians, preachers and settlers who passed through. The garrison supports the United States Army Training and Doctrine Command (TRADOC) by managing and maintaining the home of the United States Army Combined Arms Center (CAC). CAC's mission involves leader development, collective training, Army doctrine and battle command (current and future).

Fort Leavenworth is home to the Military Corrections Complex, consisting of the United States Disciplinary Barracks, the Department of Defense's only maximum security prison, and the Midwest Joint Regional Correctional Facility. In addition, the Fort Leavenworth Garrison supports numerous tenant organizations that directly and indirectly relate to the functions of the CAC, including the United States Army Command and General Staff College and the Foreign Military Studies Office.

The fort occupies 5,600 ac (2,300 ha) and 7,000,000 ft² (70,000 m²) of space in 1,000 buildings and 1,500 quarters. It is located on the Frontier Military Scenic Byway (U.S. Route 69 and K-7 corridor), which was originally a military road connecting to Fort Scott National Historic Site and Fort Gibson.