Japan and South Korea signed an agreement to share intelligence on North Korea’s military activities, including its nuclear program.
The pact will help “restrain” North Korea’s nuclear and missile activity.
The agreement allows South Korea and Japan to swap information directly, instead of going through the United States as they had been under a deal signed in 2014.
The new arrangement drew opposition from activists and political parties in South Korea, including those who are demanding the resignation of President Park Geun-Hye.
China, a key ally of North Korea, also objected to the arrangement, saying it will bring an unsafe and unstable element to the region.