A 5-159th General Support Aviation Battalion CH-47 Chinook technician awaits the signal from U.S. Navy Special Boat Team 20 Sailors for cable release during a training exercise at Fort Eustis, Va., April 10, 2014. The exercise lasted five days to train multiple personnel on proper sling-loading techniques. (U.S. Air Force photo by 2nd Lt. Brooke Betit/Released)