Fort Eustis, << YOO stihs, >> Virginia, is the headquarters of the United States Army Training and Doctrine Command. This command controls all Army individual schooling and training and manages the Army ROTC program. The fort covers about 8,300 acres (3,360 hectares), and lies 11 miles (18 kilometers) south of Williamsburg. Fort Eustis has the nation’s only all-military-operated railway system. The post was set up as a Coast Artillery training area in 1918, and named for Brigadier General Abraham Eustis, an artillery officer of the early 1800’s. In 2010, the government combined Fort Eustis with the nearby Langley Air Force Base to form Joint Base Langley-Eustis.