While there are more than a few people in MAGA-land who would be onboard with invading Canada and/or Greenland, I really don't think it will happen. While the Trump administration is steadily sabotaging its relationship with the rest of the liberal democratic world, such drastic action would be the last straw. He would be declaring war against two NATO allies - thus, war against all of NATO. Russia would then invade the Baltic countries, China would invade Taiwan. Trump may be incapable of thinking beyond his next BM, but I have to believe there are sufficient adults in the DoD to strangle that idea in its crib.
I'm still trying to wrap my head around this Venezuela op.