U.S. Navy Builder 3rd Class David Hamlin, attached to Naval Mobile Construction Battalion 5, and a Philippine Navy sailor with 3rd Naval Combat Engineering Battalion construct parts of a roof during Exercise Balikatan at Luga Elementary School Santa Teresita, Cagayan, Philippines, May 6, 2018. Exercise Balikatan, in its 34th iteration, is an annual U.S.-Philippine military training exercise focused on a variety of missions, including humanitarian assistance and disaster relief, counterterrorism, and other combined military operations held from May 7 to May 18. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kryzentia Richards)