The U.S., South Korea and Japan will launch real-time information sharing about North Korean missile launches and more “systematic” trilateral military drills in the coming months, Seoul’s defense ministry announced Sunday.

The statement came a day before an annual high-level military meeting between the U.S. and ROK in Seoul, where the two sides approved revisions to their joint strategy for deterring North Korean nuclear weapons for the first time in a decade.

In its press release on Sunday, Seoul’s defense ministry stated that the defense chiefs of the U.S., South Korea and Japan spoke by phone the same day and