U.S. Air Force Airmen and U.S. Army Soldiers departed the Langley Transit Center at Langley Air Force Base, Va., April 1, 2015, after a 21-day controlled monitoring period. To date, 415 U.S. Service members have transited through the LTC since it’s opening in November 2014. (U.S. Air Force photo by Staff Sgt. Ciara Gosier/Released)