The facility, which is composed of several war rooms, is the principal command and control center of the Department of Defense.

In 1866 he was in command of the Department of the Platte, which then included the Montana territory.

After the war, Worth was placed in command of the Department of Texas in 1849.

Harney was next assigned command of the Department of Oregon.

After the peace, he assumed command of the Department of Lys.

In January 1863, he again assumed command of the Department of the East.

He was promoted to brigadier general in 1863 and assigned command of the Department of Southwestern Virginia.

When the war ended, Granger remained in the Army, and was given command of the Department of Texas.

On July 28, 1868, he was placed in command of the Department of Louisiana.

He then had command of the Department of the Missouri until his retirement on October 12, 1886.