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A U.S. Air Force F-16 Fighting Falcon assigned to the 36th Fighter Squadron, takes off for a trilateral defensive counter-air training at Osan Air Base, Republic of Korea, June 18, 2025. This trilateral training marks the second of 2025 and the continuation of long-standing defense cooperation among the three nations, continuing to provide the ability to immediately respond to regional security challenges. (U.S. Air Force photo by Senior Airman Rome Bowermaster)