U.S. Marine Corps Cpl. John Madrigal, left, and Lance

U.S. Marine Corps Cpl. John Madrigal, left, and Lance Cpl. Matthew Bayersdorf attach a hose while conducting Air Delivered Ground Refueling at Clark Air Base, Philippines, April 4, 2019, during Exercise Balikatan. Balikatan is an annual exercise between the U.S. and the Philippines and comes from a Tagalog phrase meaning "shoulder-to-shoulder," representing the partnership between the two countries. The exercise promotes regional security and humanitarian efforts for U.S. allies and partners. Both Madrigal and Bayersdorf are with Marine Aerial Refueler Transport Squadron 152. (U.S. Marine Corps photo by Lance Cpl. Tyler Harmon)