The U.S. aircraft carrier USS Carl Vinson arrived at the southern city of Busan in South Korea on Sunday as a show of force, South Korea’s navy said. The visit was part of the “ironclad” commitment of the United States to extended deterrence and to show readiness by the military alliance between Seoul and Washington against North Korea,

The Carl Vinson Carrier Strike Group arrived in South Korea only days after Pyongyang carried out its fourth missile test this year.