The concept of UN peacekeeping has had to evolve and change to meet the challenges of contemporary sources of conflict; consequently, peacekeeping operations have grown rapidly in number and complexity. This book examines a number of issues associated with contemporary multinational peace operations, and seeks to provide insights into the problems that arise in establishing and deploying such forces to meet the challenges of current conflicts. The focus of the book is three case studies (Lebanon, Somalia and Kosovo), involving a comparative analysis of the traditional peacekeeping in Lebanon, the more robust peace enforcement mission in Somalia, and the international administration undertaken on behalf of the international community in Kosovo. The book analyses the lessons that may be learned from these operations in terms of mandates, command and control, use of force and the relevance of international humanitarian and human rights law to such operations.