Russia’s expanding security ties with North Korea raise weighty foreign policy questions for Japan and complicate the geopolitical dynamics in the Indo-Pacific. 

The inclusion of China in addition to North Korea as a shared security concern among the United States, South Korea, and Japan has established a new milestone for strengthened trilateral cooperation…

The U.S.-Japan-South Korea summit at Camp David reflects trilateral institutionalization. However, the real threat to effective trilateralism lies in the domestic political environments of the three …