U.S. Marine Corps Staff Sgt. Timothy Davis, Marine Wing Support Squadron 172, plays with students during an engineer civil assistance project in support of Amphibious Landing Exercise 2013 (PHIBLEX 2013) at the Dallipawen Elementary School, Oct. 4, 2012. PHIBLEX 2013 is a bilateral training exercise conducted annually in the Republic of the Philippines to enhance amphibious readiness of both militaries and to strengthen interoperability.