As the twentieth century ended, Canada was completing its sixth term on the United Nations Security Council, more terms than all but three other non-permanent members. A decade later, Ottawa’s attempt to return to the council was dramatically rejected by its global peers, leaving Canadians – and international observers – shocked and disappointed. Drawing from more than twenty archival libraries and more than eighty interviews with experts and practitioners, Canada on the United Nations Security Council tells the story of that defeat and what it means for future campaigns, describing and analyzing Canada’s attempts since 1946, both successful and unsuccessful, to gain a seat as a non-permanent member. It also reveals that while the Canadian commitment to the United Nations itself has always been strong, Ottawa’s attitude towards the Security Council, and to service upon it, has been much less consistent. Nonetheless, the benefits of council membership have consistently equaled or outweighed the costs of participation. Impeccably researched and clearly written, Canada on the United Nations Security Council is the definitive history of the Canadian experience on the world’s most powerful stage.