Two U.S. Air Force B-1 Lancers fly in formation with two U.S. F-16 Fighting Falcons and two Republic of Korea Air Force F-35A Lightning IIs in airspace over the western region of ROK, April 15, 2025. Regular training between U.S. and ROK bombers and fighters, especially fifth generation aircraft, helps maintain the U.S. and ROK robust combined readiness posture and strengthens aircrew familiarization with the local airspace. (Photo courtesy of the Republic of Korea Air Force)