U. S. Marines unload a fuel truck off of USNS Millinocket (T-EPF 3) at Puerto Princesa, Philippines for exercise Balikatan April 8, 2016. Balikatan is an annual Philippine-U.S. military bilateral training exercise that is a signature element of the Philippine-U.S. alliance focused on a variety of missions, including humanitarian assistance, maritime law enforcement, and environmental protection. (U.S. Navy Combat Camera photo by Mass Communication Specialist 1st Class Doug Harvey/Released)