The U.S. aircraft carrier USS Carl Vinson arrived at the southern port city of Busan in South Korea on Sunday as a show of force against North Korea, South Korea's navy said. It is the first U.S. aircraft carrier to dock at a South Korean port since U.

The group entered the country through China on their trip to Rason in the far northeast — more than 500 miles from the capital city of Pyongyang, which once occasionally welcomed occasional tourism groups, albeit under strict supervision and no real freedom of movement.

A U.S. aircraft carrier has arrived in South Korea in a show of force, days after North Korea test-launched cruise missiles to demonstrate its counterattack capabilities.