Flight Quartet Military aircraft fly near Andersen Air Force Base, Guam, Feb. 9, 2021, as part of a formation of U.S. and Japanese aircraft participating in Cope North. The annual exercise serves as a keystone event to enhance U.S. relations with regional allies and partners and promote security and stability throughout the Indo-Pacific region. SHARE: Download: Full Size (2.71 MB) Tags: partnerships, Air Force, Indo-Pacific, cope north 21 Credit: Air Force Senior Airman Duncan C. Bevan VIRIN: 210209-F-HF102-0182Y.JPG Photo Gallery