AUKUS, the newly-established security partnership between Australia, the United Kingdom, and United States, has made waves of late as a result of its focus on helping Australia operate, acquire, and eventually build its own nuclear-powered attack submarines. But the agreement goes well beyond that, to touch on emerging technologies and providing greater deterrence to revisionist and revanchist powers. Canada, despite its membership in important partnerships like NATO and the Five Eyes, was absent from initial AUKUS discussions, and while Ottawa is now apparently considering the benefits of the agreement, Canada’s defense posture remains woefully out of sync with that of its allies. In this episode, Christopher Hernandez-Roy sits down with Vincent Rigby, senior adviser with the CSIS Americas Program and visiting professor at the Max Bell School of Public Policy at McGill University. Together they discuss the findings of a recent CSIS Commentary making the case for Canadian membership in AUKUS, the advantages participation in the agreement would garner, as well as what Canada could bring to the table. They also go beyond AUKUS to examine Canada’s broader defense posture and security challenges.