Trump is trying to exhume the Monroe Doctrine. It gives hegemony to the US over this half of the world and Europe over the other. That's why he feels free to attack Venezuela and Colombia and thinks he has the right to talk about annexing Canada and / or Mexico. And it's also why he wants to leave the Ukraine disaster for the Europeans to deal with Putin and cancelled funding of USAID. He probably saw something about it on television, he's not smart enough to keep up with changes in international law (even if they were decades ago).
On another note, you called me out as a liar last week and claimed you would check my old posts to prove it. How did that go?