This special issue on Canada and the challenges of globalization since 1968 arises from a conference held in Ottawa to mark the publication in 2017 of the third volume in the official history of Canada's department of external affairs: innovation and adaptation, 1968-84 (U of Toronto Press). Technological change, trade liberalisation, and a steadily expanding international agenda after 1968 heralded the arrival of globalization and placed External Affairs under great stress during the 1970s as it struggled to adapt. This collection explores Canada's experiences with some of the key political, economic, security, and social themes associated with globalization after 1968. Rooted in a long and deep fifty-year perspective, these articles suggest that the changes wrought by globalization will not be easily undone despite today's raging torrents of nationalist populism and economic protectionism. The challenges that confront Prime Minister Justin Trudeau's government are hardly new, and will demand the same kind of frustrating and endless processes of innovation and adaptation that have characterized policymaking over the last fifty years.