My point is, Mexico and Canada could DECIDE to become allies of China and Russia. And then you would see the very same, how the US doesn't give a s** about their free decisions and invades.
The USSR's support for Cuba went far beyond anything any NATO member has seen since the end of the Cold War, yet there was no war against Cuba.
Meanwhile, Central and Eastern Europe has seen no deployment of even conventional weapons beyond purely symbolic gestures like a few thousand lightly armed soldiers scattered across a region of more than 100 million people.
If Cuba is the blueprint, then NATO allies could arm Eastern Europe to the teeth.
Incidentally, US nukes in Turkey in 1960s was the starting point of the Cuban missile crisis.