This paper seeks to explain the role of the West Timor Care Foundation (YPTB) in the 2009 Montara dispute using the concept of the Transnational Advocacy Network and the Boomerang Model. This study found that YPTB had a role as an external-pressure and agenda-setter for the Indonesian and Australian governments because it failed to accommodate community problems. Pressure is carried out by means of diplomacy and litigation to overcome government inconsistencies with implication in the bilateral atmosphere of the two governments. YPTB's efforts to influence this policy set in motion the Boomerang Effect as a way to settle the Montara settlement. This research is qualitative studies with purpose to investigate WTCF as an analyze unit and as the informant key. The results of this study contribute to understanding the processes that can mobilize interest groups and the ways in which they resolve disputes. The failure of governments to design interest triggers to use their networks and force changes to cross-border policies.

Cooperation could be done by integrated cooperation between states member and inter regional organization equally, like ASEAN and EU (Eropean Union) cooperation. Popular speculations between this two organizations are mostly partial, biased in gap between EU contribution to ASEAN rather than vice versa. In this paper, we challenge capability of ASEAN as a regional organization with most of the member states are developing and third world country comparing to EU which 26 of members states has highest GDP all around the world. This paper also discuss about ASEAN as an organization that have eperiences in several humanitarian violation cases, comparing with EU as a ‘safe heaven’ in human rights. Through ecleckticism theory, we would see how liberalism and realism played a role in seeing such phenomenon, and how to see between those two theories. This paper argEUs that there are mutuliasm cooperations between EU and ASEAN, start with EU contribution on ASEAN structures, the critics about ASEAN as ‘imitation community’, and also being partner with ASEAN in investments. ASEAN is also seen as a ‘teacher’ for EU in pragmatism and normative power to improve EU capability as inclusive community.Keywords: trade, hegemony, multilateral, EU, ASEAN