North Korea's missile launch over Hokkaido on Tuesday overshadowed what was meant to be a symbolic moment of Japan-U.S. solidarity, having come just hours before Air Self-Defense Force anti-missile drills at two U.S. bases in Japan.

The twin deployments, which were demonstrated for the media, took place at Yokota Air Base in western Tokyo and Marine Corps Air Station Iwakuni in Yamaguchi Prefecture. They marked the first time ASDF Patriot Advanced Capability-3 (PAC-3) anti-missile systems were deployed and tested at U.S. air bases in Japan.

Lt. Gen. Jerry Martinez, the commander of U.S. Forces Japan, was forced to cancel a joint appearance with his Japanese counterpart to deal with the North Korean situation.