The aircraft engaged in offensive and defensive counter-air training, improving combined tactics, techniques and procedures. After the exercise, the B-1B bombers executed a low pass over the flightline of Osan Air Base before exiting Korean airspace.
According to the U.S. Air Force, regular training with strategic assets such as long-range bombers and fifth-generation fighters enables Seventh Air Force to maintain a strong, combined readiness posture with the Republic of Korea Air Force. It also demonstrates the continued ironclad commitment to the ROK-U.S. Alliance.
Source: U.S. Air Force.