With the signing of the Memorandum of Understanding (MoU) between the Government of Indonesia and the Free Aceh Movement (GAM) on August 15th, 2005 in Helsinki, Finland, a potential new era for peace in Aceh can be realized. This MoU presented Aceh with the best alternative to end the conflict and war for a very long time. Through the latest initiative by the Crisis Management Initiative (CMI) has facilitated the peace negotiations, with the back up from the European Union (EU). The advancement of the EU’s security mechanism, together with its constructive global outlook has made it possible for the EU to export its value-based liberal ideals; peace, stability, democracy, human rights and the rule of law. This thesis explained the Aceh peace process and investigated the role of the EU in monitoring the implementation of peace agreement. It also elucidated why they want to involved itself in first ever European Security and Defense Policy (ESDP) mission in Asia-Pacific. The EU played an important role in Aceh Monitoring Mission (AMM) in conjunction with five ASEAN countries. The EU monitoring mission in Aceh, Indonesia, is part of the EU’s ambition to play a greater role in international politics. The EU’s role as an organiser, financer and a guarantor of the peace process leads to the success of the Aceh Monitoring Mission (AMM) and cited as a model for future international peace operations.