190406-N-SA412-0025 SOUTH CHINA SEA (April 6, 2019) Sailors assigned to the amphibious assault ship USS Wasp (LHD 1) participate in a fueling-at-sea with the guided-missile destroyer USS Preble (DDG 88) during Exercise Balikatan 2019. In its 35th iteration, Balikatan is an annual U.S.-Philippine military training exercise focused on a variety of missions, including humanitarian assistance and disaster relief, counter-terrorism, and other combined military operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Sean Galbreath/Released)