South Korea, Japan and the United States conducted a joint air drill on Friday involving a U.S. B-52 strategic bomber and fighter jets of the three allies over international waters, the South's defence ministry said.

S. Korea, U.S., Japan stage joint air drills A U.S. B-52H bomber, South Korea's KF-16 and Japan's F-2 fighters fly in formation over international waters off the southern South Korean island of Jeju on July 11,

South Korea, the United States and Japan held combined air drills Friday as part of efforts to strengthen their joint response against North Korea's nuclear and missile threats, the South's Defense Ministry said.