DAHLGREN, Va. (Aug. 25, 2016) - Rear Adm. Tom Druggan, right, commander, Naval Surface Warfare Center, salutes Vice Adm. Thomas Moore, commander, Naval Sea Systems Command, during a change of command ceremony. Druggan relieved Rear Adm. Lorin Selby, center, as NSWC commander at the first change of command ceremony held on the NSWC Dahlgren Division Potomac River Test Range gunline. (U.S. Navy photo by Ryan DeShazo/Released)