The US attack on Iraq in 2003 mobilised strong opposition around the world. This book focuses mainly on the US movement before and during the invasion. The intention to go to war was made public well in advance by the Bush administration, and Cortright describes how it was possible to organise demonstrations with 10 million participants worldwide even before the invasion started. The New York Times used the term ‘superpower’ in covering the antiwar public opinion, as did Koffi Annan. David Cortright has a long history in the US peace movement and unique insight into its internal discussions. He describes the importance of new ways to communicate globally through the Internet as well as traditional methods of community-based organising. He also analyses the complexity of the movement. Women’s movements, faith-based organisations, parts of the business community, trade unions, justice networks, military veterans and many more agreed enough to get millions out on the streets. What took the movement against the war in Vietnam years, was now achieved in months. Finally, Cortright discusses the mobilisation's impact on the war effort. Although the movement did not prevent the invasion, the author argues that it should not be seen as a total failure. The USA never succeeded in getting approval for the war from the UN Security Council. Other positive side effects include educating thousands about organising and learning to be critical of government war propaganda. The book also argues that the movement helped Obama in the 2008 elections. The book is an important source to understand the movement opposing the war in Iraq. It would be valuable to have similar documentation about movements outside the US.