Embassy of the United States Ottawa, Canada

U.S. defense arrangements with Canada are more extensive than with any other country. The Permanent Joint Board on Defense, established in 1940, provides policy-level consultation on bilateral defense matters and the U.S. and Canada share NATO mutual security commitments. In addition, U.S. and Canadian military forces have cooperated since 1958 on continental air defense within the framework of the North American Aerospace Defense Command (NORAD). The military response to the terrorist attacks of September 11, 2001 both tested and strengthened military cooperation between the U.S. and Canada. The new NORAD Agreement that entered into force on May 12, 2006 added a maritime domain awareness component and is of "indefinite duration," albeit subject to periodic review. Since 2002, Canada has participated in diplomatic, foreign assistance, and joint military actions in Afghanistan. Approximately 2,500 Canadian Forces personnel are deployed at any given time in southern Afghanistan under a battle group based at Kandahar and as members of the Canadian-led Provincial Reconstruction Team (PRT) at Camp Nathan Smith in Kandahar. The Canadian Parliament has approved the extension of this mission in Kandahar until 2011. Canada has also contributed to stabilization efforts in Haiti, initially with troops and later with civilian police and electoral assistance, and humanitarian and developmental aid.

Canada views good relations with the U.S. as crucial to a wide range of interests, and often looks to the U.S. as a common cause partner promoting democracy, transparency, and good governance around the world. Nonetheless, it sometimes pursues policies at odds with our own. Canada decided in 2003 not to contribute troops to the U.S.-led military coalition in Iraq (although it later contributed financially to Iraq's reconstruction and provided electoral advice). Other recent examples are: Canada's leadership in the creation of the UN-created International Criminal Court (ICC) for war crimes; its decision in early 2005 not to participate directly in the U.S. missile defense program; and its strong support for the Ottawa Convention to ban anti-personnel mines. The U.S., while the world's leading supporter of demining initiatives, declined to sign the treaty due to unmet concerns regarding the protection of its forces and allies, particularly those serving on the Korean Peninsula, as well as the lack of exemptions for mixed munitions.