Engineering Aid 3rd Class Philip Rose, assigned to Naval Mobile Construction Battalion (NMCB) 11, stands by with a M-240B Light Machine Gun (LMG) loaded with blanks and watches a MV-22B Osprey transport Marines assigned to 3rd Battalion, 3rd Marines for an island seizure drill during Exercise Valiant Shield 2016 in Tinian, Commonwealth of the Northern Mariana Islands (CNMI), Sept. 20, 2016. Valiant Shield is a biennial, U.S. Air Force, Navy and Marine Corps exercise held in Guam, focusing on real-world proficiency in sustaining joint forces at sea, in the air, on land and in cyberspace. (U.S. Navy Combat Camera photo by Mass Communication Specialist 1st Class Benjamin A. Lewis/Released)