U.S. Marines sprint to set up a firing line during a bilateral amphibious landing by U.S. and Philippine Marines as part of exercise Balikatan 2015 on North Beach at the Naval Education Training Center in Zambales, Philippines, April 21, 2015. U.S. Marines sprint to set up a firing line during a bilateral amphibious landing by U.S. and Philippine Marines as part of exercise Balikatan 2015 on North Beach at the Naval Education Training Center in Zambales, Philippines, April 21, 2015. SHARE: Download: Full Size (2.24 MB) Tags: photo essays Credit: VIRIN: 903303-A-JYT17-586.jpg Photo Gallery