U.S. Navy Construction Mechanic 3rd Class Lucas Jackson, assigned to Underwater Construction Team (UCT) 2, performs post-dive maintenance on a KM-37 diving helmet after an underwater pile removal operation at Commander, Fleet Activities Sasebo (CFAS), Jan. 9, 2018. UCT-2 provides construction, inspection, maintenance, and repair of underwater and waterfront facilities in support of the Pacific Fleet. (U.S. Navy Combat Camera photo by Mass Communications Specialist 1st Class Arthurgwain L. Marquez)