Why do states and international relations organisations participate in the 'global war on terrorism'? This book asks this question within a broad framework, exploring the mechanisms and causes for participation in global governance and taking counter terrorism as a pertinent case. Challenging the assumption of egalitarian structures of global governance, the author argues that power relations and the use of power (influence, coercion and force) play a more important role than previously suggested. Providing a critical assessment of the counter terrorism policies of EU, US and ASEAN, the book identifies a number of causes of participation in hegemonic governance, including asymmetric interdependence with the US, open and informal pressure in the case of the EU, and the authority and legitimacy of the leading actors.