ASEAN was formed in 1967 at the time of cold war. It was combining of non-communist part of SEA aimed for economic cooperation and diplomatic interaction. Security/military cooperation in Asia-Pacific was affected by bipolarity of the cold war and bilateral alliances and military partnership between an Asian state and extra regional major power. SEATO is only one regional security cooperation that head by the US. This were some trilateral border security agreement among ASEAN, it mean like ASEAN is the important role in resolving conflict as ASEAN was enriched with experiences in dealing with security cooperation