The post-Cold War era is characterised by shifting patterns of war and peace. The new demands and challenges facing external actors, such as international peacekeeping forces and mediators, are therefore manifold. In this book the editors address some of the critical and transformative issues in war and peacemaking, such as the roles of private military and security companies and the use of force in peace support operations. The authors discuss how states, organisations and individuals contribute to conflict resolution. Another focus is the challenge of co-ordinating various peacemaking efforts. The contributors are scholars in the field of Peace and Conflict Research who take a systematic approach to analysing some of these transient aspects of war and peace with empirical cases ranging from Iraq, Israel-Palestine, Sri Lanka to the Armenian genocide.