*Canada and the Ukrainian Crisis* offers a timely explanation of the dynamic interaction between key factors - at the international, national, and individual levels - that shaped the Canadian government's response and imbued it with an unusual degree of urgency. Explaining the nature of the crisis and why it elicited such a forceful reaction from the government of Stephen Harper, Kordan and Dowie assert that Canada's decision to side openly with Ukraine is best understood as a course correction, rather than a completely new foreign policy direction. They argue that this action reaffirmed Canada's historical commitment to a liberal rules-based order that has been an emblem of its foreign policy since the Second World War, treating the Ukrainian crisis as part of a wider struggle to defend liberal principles and values.