Japan and the United States held joint air drills on Sunday, a day after the test-launch of an intercontinental ballistic missile by North Korea, Japan's Defense Ministry said.U.S. forces also staged separate joint air exercises with South Korea the same day, South Korean military said.North Korea said earlier Sunday it had conducted the previous day a "surprise" drill of the Hwasong-15 ICBM on a lofted trajectory, according to state-run media.Washington and its allies Tokyo and Seoul conducted their respective joint drills in a show of the unity in defending against North Korean provocatio…READ FULL ARTICLE