U.S. Air Force photo by Senior Airman Xavier Navarro ()

U.S. Air Force 1st Lt. John Silvi, 909th Air Refueling Squadron, KC-135 Stratotanker pilot, from Kadena Air Base, Japan, prepares for engine start during COPE North 2019 at Andersen Air Force Base, Guam on Feb. 21, 2019. COPE North is an annual multilateral U.S. Pacific Air Forces-sponsored field training exercise conducted focused on combat air forces large-force employment and mobility air forces humanitarian assistance and disaster relief training to enhance interoperability among U.S., Australian and Japanese forces.