Conflict resolution and peacekeeping are not only closely related conceptually, they were also "inventions" of the same historical period. Peacekeeping was first defined under the Hammarskjold Principles of 1956, while we can date the formal institutionalization of conflict resolution to the founding of the "Journal of Conflict Resolution" in 1957. However, it is in the 1990s that conflict resolution theorists turned to the perspectives of conflict theory in an effort to develop more effective practices of peacekeeping. This book is about the ways in which conflict resolution theory has become relevant to the various challenges faced by the United Nations peacekeeping forces as efforts are made to learn from the traumatic and devastating impact of the many civil wars that have erupted in the 1990s.