U.S. Marine Lance Cpl. Maresea Potts, a supply clerk with Combat Logistics Battalion 31, 31st Marine Expeditionary Unit, plays a game of Duck-Duck-Goose with Maruglo Elementary School students during a visit to the school on Col. Ernesto Ravina Air Base, Philippines, Oct. 6, 2016. Marines and Sailors with the 31st MEU visited the school to build unity between U.S. forces and the local residents during Philippine Amphibious Landing Exercise 33 (PHIBLEX). PHIBLEX is an annual U.S.-Philippine military bilateral exercise that combines amphibious capabilities and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps Photo by Staff Sgt. T.T. Parish/Released) - U.S. Marine Lance Cpl. Maresea Potts, a supply clerk with Combat Logistics Battalion 31, 31st Marine Expeditionary Unit, plays a game of Duck-Duck-Goose with Maruglo Elementary School students during a visit to the school on Col. Ernesto Ravina Air Base, Philippines, Oct. 6, 2016. Marines and Sailors with the 31st MEU visited the school to build unity between U.S. forces and the local residents during Philippine Amphibious Landing Exercise 33 (PHIBLEX). PHIBLEX is an annual U.S.-Philippine military bilateral exercise that combines amphibious capabilities and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps Photo by Staff Sgt. T.T. Parish/Released)

Philippine Marine Maj. Gen. Andre M. Costales Jr., commandant of the Philippine Marine Corps, makes remarks during the Philippine Amphibious Landing Exercise 33 (PHIBLEX) opening ceremony at Marine Barracks Rudiardo Brown, Taguig City, Philippines, Oct. 4, 2016. PHIBLEX is an annual U.S.-Philippine military bilateral exercise which combines amphibious capabilites and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps photo by Cpl. Steven Tran/Released) - Philippine Marine Maj. Gen. Andre M. Costales Jr., commandant of the Philippine Marine Corps, makes remarks during the Philippine Amphibious Landing Exercise 33 (PHIBLEX) opening ceremony at Marine Barracks Rudiardo Brown, Taguig City, Philippines, Oct. 4, 2016. PHIBLEX is an annual U.S.-Philippine military bilateral exercise which combines amphibious capabilites and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps photo by Cpl. Steven Tran/Released)

Members of the Joint Humanitarian Assistance Survey Team (JHAST) board an MV-22 Osprey during Philippine Amphibious Landing Exercise 33 (PHIBLEX). PHIBLEX is an annual U.S.-Philippine military bilateral exercise which combines amphibious capabilities and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps photo by Maj. Roger Hollenbeck/Released) - Members of the Joint Humanitarian Assistance Survey Team (JHAST) board an MV-22 Osprey during Philippine Amphibious Landing Exercise 33 (PHIBLEX). PHIBLEX is an annual U.S.-Philippine military bilateral exercise which combines amphibious capabilities and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps photo by Maj. Roger Hollenbeck/Released)

U.S. Marine Corps Lance Cpl. Eneas Mori participates in the engineering civic assistance project at the Palawig Elementary School during Philippine Amphibious Landing Exercise 33 (PHIBLEX) in Cagayan, Philippines, Sept. 24, 2016. PHIBLEX is an annual U.S.-Philippine military bilateral exercise which combines amphibious capabilities and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps photo by Lance Cpl. Carl King) - U.S. Marine Corps Lance Cpl. Eneas Mori participates in the engineering civic assistance project at the Palawig Elementary School during Philippine Amphibious Landing Exercise 33 (PHIBLEX) in Cagayan, Philippines, Sept. 24, 2016. PHIBLEX is an annual U.S.-Philippine military bilateral exercise which combines amphibious capabilities and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships. (U.S. Marine Corps photo by Lance Cpl. Carl King)

U.S. and Philippine Marines and Sailors watch as the students of Palawig Elementary School perform during the engineering civic assistance project ground breaking ceremony for Philippine Amphibious Landing Exercise 33 (PHIBLEX) Sept 23, 2016. PHIBLEX 33 is an annual U.S.-Philippine military bilateral exercise that combines amphibious landing and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships (U.S. Marine Corps photo by MCIPAC Combat Camera Cpl. Allison Lotz/Released) - U.S. and Philippine Marines and Sailors watch as the students of Palawig Elementary School perform during the engineering civic assistance project ground breaking ceremony for Philippine Amphibious Landing Exercise 33 (PHIBLEX) Sept 23, 2016. PHIBLEX 33 is an annual U.S.-Philippine military bilateral exercise that combines amphibious landing and live-fire training with humanitarian civic assistance efforts to strengthen interoperability and working relationships (U.S. Marine Corps photo by MCIPAC Combat Camera Cpl. Allison Lotz/Released)