Armed Forces of the Philippines Marine Lance Cpl. Rommel Decrepito, right, Engineer Landing Support Company, and U.S. Marine Corps Lance Cpl. Alex Wisecup, left, Marine Wing Support Squadron 172 , construct a new classroom during a 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.