SEOUL (Kyodo) — South Korea’s military said it held joint air drills Sunday with the U.S. and Japan, three days after North Korea fired an intercontinental ballistic missile that marked the longest-ever flight time for such a weapon from the country.

In response to Pyongyang’s missile launch, the trilateral exercise took place in airspace where the air defense identification zones of Seoul and Tokyo overlap, north of South Korea’s southern island of Jeju, the military said.