PACIFIC OCEAN (Jan. 20, 2016) --Secretary of the Navy Ray Mabus, front, and Cmdr. Walter Mainor, Commandning Officer, USS William P. Lawrence (DDG 110), observe an underway replenishment aboard the guided-missile destroyer USS William P. Lawrence (DDG 110). William P. Lawrence, assigned to the John C. Stennis Carrier Strike Group, is part of the Great Green Fleet, a year-long initiative highlighting the Department of the Navy's efforts to transform its energy use to increase operational capability. Providing a combat-ready force to protect collective maritime interests, the John C. Stennis strike group is operating the U.S. 3rd Fleet area of operations for a regularly scheduled Western Pacific Deployment. (U.S. Navy photo by Mass Communication Specialist 3rd Class Emiline L. M. Senn/Released)