The United States and Canada have the world's largest trading relationship and the longest shared border. Spanning the period from the American Revolution to post-9/11 debates over shared security, Canada and the United States offers a current, thoughtful assessment of relations between the two countries. Distilling a mass of detail concerning cultural, economic, and political developments of mutual importance over more than two centuries, this survey enables readers to grasp quickly the essence of the shared experience of these two countries. This edition of Canada and the United States has been extensively rewritten and updated throughout to reflect new scholarly arguments, emphases, and discoveries. In addition, there is new material on such topics as energy, the environment, cultural and economic integration, the wars in Iraq and Afghanistan, border security, missile defense, and the second administration of George W. Bush.