A 736th Security forces Squadron sentry demonstrates cornering techniques and urban-combat during Pacific Defender 21-1, January 28, 2021. This long-standing exercise pre-empts Cope North 21 and is designed to enhance multilateral air operations among security forces of the U.S. Air Force, the U.S. Navy, U.S. Marine Corps, Koku-Jieitai and Royal Australian Air force. (U.S. Air Force photo by Senior Airman Amir R. Young)