Construction Mechanic 3rd Class Ben McCallum (left) and Hospital Corpsman 1st Class James Aldridge, with Underwater Construction Team (UCT) 2 Construction Dive Detachment (CDD) Alpha, swim toward the USS Arizona Memorial at Pearl Harbor, Hawaii, to conduct an indoctrination dive for future work May 20, 2016. UCT 2 CDDA provides responsive inshore and underwater construction capabilities and is assigned to Commander, Task Force (CTF) 75, the primary expeditionary task force responsible for the planning and execution of coastal riverine operations, explosive ordnance disposal, diving engineering and construction, and underwater construction in the U.S. 7th fleet area of responsibility. (U.S. Navy combat camera photo by Mass Communication Specialist 1st Class Charles E. White/Released)