U.S. Navy Construction Mechanic 1st Class Matthew Ramirez, assigned to Underwater Construction Team (UCT) 2, conducts pre-dive maintenance on a KM-37 diving helmet for an underwater pile removal operation at Commander, Fleet Activities Sasebo (CFAS), Jan. 10, 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)