Alexa MacKie, "Nearly 60% of Canadians support becoming a full member of the European Union, poll says" https://www.theglobeandmail.com/politics/article-canadians-support-becoming-member-european-union-nanos-poll/

Economic integration and common values are good reasons for Canada to join the EU. But what is strangely missing in these discussions is the benefit of the mutual defense obligation of the Treaty on EU (1992), Art. 42.7., which is important for Canada and the EU should NATO break apart.

(The mutual defense obligation as stated in the Treaty on EU, Art. 42.7, is stronger than Art. 5 of the NATO treaty. The first obligates every EU member state to assist with military mean wheras the second allows NATO member states to decide individually what to contribute.)