U.S. Air Force personnel set up a surveillance camera during the humanitarian assistance and disaster relief (HA/DR) component of Exercise Cope North 20 (CN20) on the island of Tinian Feb. 16, 2020. CN20 is a Pacific Air Forces-sponsored multilateral field training exercise that involves more than 2,000 personnel and approximately 100 aircraft and aims to increase the combat readiness and interoperability between the U.S. Air Force, Royal Australian Air Force and Japan Air Self-Defense Force. (Royal Australian Air Force photo by CPL David Said)