Military intervention has emerged as one of the greatest challenges facing the West. This book explores how the West has reacted to this challenge. In particular it examines the question of how military power has and might be used to help protect those elsewhere who are in danger. It looks at how force is used, the limits on the use of force, and how monitoring and verification of ceasefires can be effectively implemented to stop force being used. It also examines the political context in which force is used, including the West's intolerance for casualities, the role of the media and the gender dimensions of intervention.