Apr 29,2016 Special Forum Reviving the US-Japan-Korea Triangle in South Korean Diplomacy On March 31, 2016, President Obama, President Park, and Prime Minister Abe held a summit in Washington, DC on the sidelines of a nuclear security summit. They agreed to be united in responding to provocative actions by North Korea and to enter into discussions for upgrading security cooperation, as well as to work toward steady […] Park Cheol Hee* December Accord , Fourth nuclear test , History consciousness , Japanese militarism , Northeast Asian Trilateral Summit , UNSC resolution 2270