This book offers the first comprehensive analysis of Canadian foreign policy under the government of Justin Trudeau, with a concentration on the areas of climate change, trade, Indigenous rights, arms sales, refugees, military affairs, and relationships with the United States and China. At the book’s core is Trudeau’s biggest and most unexpected challenge: the election of Donald Trump as president of the United States. Drawing on recognized experts from across Canada, this latest edition of the respected Canada Among Nations series will be essential reading for students of international relations and Canadian foreign policy and for a wider readership interested in Canada’s age of Trudeau. Norman Hillmer is Chancellor’s Professor of History and International Affairs at Carleton University, Canada. Philippe Lagassé is Associate Professor and the William and Jeanie Barton Chair, Norman Paterson School of International Affairs, at Carleton University, Canada.