Conflicts require a process to guide the belligerents from the battle field to mutual cooperation. But how does one provide the conflict stabilization for this peace process to operate? Peacekeeping emerged as one of these tools and has evolved to become an important element to support the peace process between belligerents in major inter-state and intra-state conflict. This book takes a broad definition of multinational peacekeeping in order to provide a basis for comparison and permit researchers to review operations labeled as “peacekeeping” by international organizations. The goal of this work is to assist researchers, scholars and others who are interested in peacekeeping and humanitarian operations to sort through the myriad of peacekeeping or peace operations since 1920 and consider some of the trends and issues behind these missions This fourth edition of Historical Dictionary of Multinational Peacekeeping contains a chronology, an introduction, and an extensive bibliography. The dictionary section has more than 700 cross-referenced entries peacekeeping operations, people, organizations, countries, and events associated with peacekeeping. This book is an excellent resource for students, researchers, and anyone wanting to know more about peacekeeping.