For the past two decades, Canadian international historians have largely missed the Cold War, or at least a significant portion of it. Certainly, there has been no shortage of studies of Canadian foreign policy featuring the bipolar struggle, and yet historians have largely confined their attention to Canada's admittedly crucial relationship with the United States, while Canadian–Soviet relations have been ignored. Indeed, in the historiography of Canada's Cold War international relations, the communist powers are largely missing. Hoping to challenge this limited focus, we frame our article around two Canada–US air defence exercises held in 1959 and 1960. While historians have viewed these exercises within the context of Canada's relationship with the United States, we highlight the wider Cold War framework in which Canadian policy was formed. After all, these exercises occurred during the mini-détente of the late 1950s and the collapse of the Paris summit in May 1960. As we demonstrate, the failure to take full account of the Cold War is a shortcoming of much of the writing on Canadian international relations, and so we offer an example of the need to take seriously Canada's foreign policy toward the communist bloc.