This is the twenty-ninth entry in the Historical Dictionaries of International Organizations series and is a third edition. Author Mays, a professor of political science at the Citadel, teaches specialized courses on multinational peacekeeping and international organizations. His stated goal for this work is 'to present enough information on the major multinational operations to allow readers to cut through any confusion and gain a better understanding of the military missions fielded since 1920.'An introduction explains peacekeeping and discusses functions of peacekeeping missions, mandating organizations, and peacekeeping trends and issues. A very helpful feature is the 12-page section that defines the acronyms and abbreviations used throughout the dictionary. The chronology runs from 1920 through January 2010. The 500-plus entries range in length from one sentence to a full page and cover peacekeeping operations, key military and civilian individuals, political crises requiring intervention by peacekeeping operations, international organizations, and specific events during the multinational missions. There are numerous see and see also references.

An appendix contains three examples of peacekeeping mandates. A select but comprehensive bibliography completes the volume. Also included are 32 photographs pertaining to UN, EU, and NATO missions.The bibliography has been updated.As more than 81 new peacekeeping missions have occurred between December 2001 and January 2010 alone, it is a major undertaking to bring all of this information together concisely in one volume. This would be a good purchase for academic libraries in particular.