Known for its association with Transportation, Aviation, and the Training and Doctrine Command, Fort Eustis (as its known in the Army world) is formally called Joint Base Langley-Eustis. Developed to meet the needs of the US during World War I, the installation was temporarily transferred to the Bureau of Prisons during the Great Depression before being reactivated to meet the needs of World War II and the Cold War. It has been in continuous operation ever since. It is the home of the 7th Transportation Brigade, currently one of the Army’s most deployed brigades.