Soldiers of U.S. Marines and the Armed Forces of the Philippines (AFP) participate in the Amphibious Assault training as part of the U.S.-Philippines military exercises at the Naval Education and Training Command of the Philippine Navy in Zambales Province, the Philippines, April 21, 2015. The "Shoulder to Shoulder" (Local name: Balikatan) exercises begins in locations in five provinces of the Philippines on April 20, involving 11,500 Filipino and U.S. military personnel. [Photo/Xinhua]