U.S. Marine Corps Lance Cpl. Diana Ceja (left), a combat engineer with Combat Logistics Battalion 31, 31st Marine Expeditionary Unit, lays mortar during the construction of new classrooms at the Anastacio N.F. Dinglas Elementary School in Ternate, Philippines, during Amphibious Landing Exercise FY 2011. The exercise is a bilateral training exercise and security assistance program between the U.S. military and the Armed Forces of the Philippines.