U.S. Army Spc. Royce Clark, 20th Engineer Brigade, 30th Eng. Battalion, 74th Eng. Detachment dive tender, helps 1st Lt. Andrew Kalna, 74th Eng. Det. diver, don his gear during a pier repair mission at Fort Eustis, Va., Jan. 30, 2014. Divers have access to hydraulic tools, underwater welding kits and other specialized equipment to complete their unique missions. (U.S. Air Force photo by Airman 1st Class Austin Harvill/Released)