200221-M-BH827-1001 ANDERSON AFB, Guam (Feb. 21, 2020) U.S. Marine Corps Sgt. Jake Vanclief, an aircraft communications navigation radar systems technician with Marine All Weather Fighter Attack Squadron 242, performs preflight checks on an F/A-18D Hornet during exercise Cope North 20 at Andersen Air Force Base, Guam, Feb. 21, 2020. Exercise Cope North is an annual U.S. Pacific Air Forces multilateral field training exercise with participants from the U.S. Air Force, U.S. Navy, U.S. Marine Corps, Japan Air Self-Defense Force and the Royal Australian Air Force. The primary intent of Cope North is to enhance coordination of combined air tactics, hone techniques and procedures while strengthening security and stability in the Indo-Pacific region. (U.S. Marine Corps photo by Lance Cpl. Jackson Ricker/Released)