U.S. sailors and Marines aboard the amphibious transport dock ship USS Mesa Verde (LPD 19) sweep the flight deck and check that aircraft are secured as the ship prepares to leave Naval Station Rota, Spain, Feb. 24, 2014. Sailors assigned to the ship and Marines assigned to the 22nd Marine Expeditionary Unit were supporting security efforts and providing crisis response capability in the U.S. 5th and 6th Fleet areas of responsibility. (U.S. Navy photo by Mass Communication Specialist 2nd Class Shannon M. Smith/Released)