Fun fact, Canada has had the capability of deploying nuclear weapons, but never owned them or kept them on Canadian soil.

During the cold war the Voodoo interceptor was able to deploy dumbfire tactical nuclear rockets to intercept incoming Russian bombers over the Arctic. But the Canadian government insisted that no nuclear weapons existed on Canadian soil. This was true, but only by an extreme technicality; parts of the airbases were ceded to the US, who also provided the nukes. They were only ever stored in the parts of the bases that were “US territory”.