The top military officers from the United States, South Korea and Japan said they agreed at a meeting on Wednesday to step up information-sharing and coordination of security efforts in light of increasing North Korean nuclear and missile threats.
The three chiefs of defense issued a joint statement calling North Korea's fourth nuclear test on Jan. 6 and Sunday's "long-range missile launch" direct violations of U.N. resolutions and "serious provocations against the international community."
They said they agreed to firmly respond to Pyongyang's actions through "trilateral information sharing" and "to coordinate further on mutual security issues to enhance peace and stability in the region."