Naval Mobile Construction Battalion (NMCB) 4 and Combat Logistics Battalion (CLB) 4 members on board USNS Millinocket (T-EPF 3) transit to exercise Balikatan 2016, April 3, 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)