Feb 11,2016 National Commentaries A Japanese Perspective "US-ROK-Japanese Trilateral Security Cooperation" In the mid-1990s, when Japan and the United States redefined their alliance and revised the “Guidelines for Defense Cooperation between the United States and Japan” to match the new set of international security challenges that arose after the end of the Cold War, trilateral security relations among the United States, […] Yamaguchi Noboru* Regionalism , Track 2 talks , US deterrence