U.S. Air Force Master Sgt. Erick Lizarraga entertains local youths at South Tinh Phong primary school during an engineering project in the Quang Ngai province, Vietnam, March 26, 2015. Efforts undertaken during Operation Pacific Angel 2015 help multilateral militaries in the Pacific improve and build relationships across a wide spectrum of civic operations, bolstering each nation's capacity to respond and support future humanitarian assistance and disaster relief operations.