With the Persian Gulf War, NATO’s ‘zero casualty’ war against the Federal Republic of Yugoslavia’s over the latter’s actions in Kosovo, September 11 and its aftermath, and the U.S.-led wars in Afghanistan and Iraq as his primary focus, David Wippman has assembled an insightful group of timely, forward-looking essays. Governments, military personnel, international lawyers, political scientists, and human rights organisations have been forced to rethink the application of existing principles of humanitarian law to new situations, and to consider possible changes or additions to those principles. The book provides them all with a tool to navigate through the new century’s increasingly turbulent waters.