[sirtaj]

I suppse the only answer is for Canada to acquire nuclear weapons then? Only thing that ever seems to give America any pause.

(somewhat /s)

[kyboren]

If Trump is actually serious about annexing Canada (or at least retaining the option), development of nuclear weapons would seem more likely to precipitate an invasion than to deter one.

Building nuclear weapons specifically to use against the US would also--in some measure, at least--justify any claims that such an invasion is a national security imperative.

[sirtaj]

Worked fine for North Korea. No invasion plans that we've heard about so far.

[Waterluvian]

My American friends use this logic when they bend over for Trump. "It'll just upset him." It's embarrassing to watch.