U.S. Army Sgt. Kiley Bannan, a salvage diver assigned to the 569th Engineer Dive Detachment, uses surface-dive equipment to communicate with a submerged diver at Fort Eustis, Va., March 22, 2016. Divers use surface-dive equipment for long dives that require constant communication, and head and eye protection. (U.S. Air Force photo by Staff Sgt. Natasha Stannard)