@izzythepush,
Trump said that China, Mexico and Canada would face tariffs because “all three haven’t treated us very well”: China because it allowed a fentanyl industry to manufacture illicit drugs for export to the United States, Mexico for what he said was allowing a porous border, and Canada for an “unfair” trade imbalance.
Trump has also set sights on Panama, because of the canal; Brazil, India and others, threatening them not to pursue attempts to reduce reliance on the U.S. dollar; and the European Union, which he said “has treated us so terribly.”
In former times, monarchs had started real war for such reasons. But since Trump takes aim at Greenland, an autonomous territory and part of the Kingdom of Denmark - who knows, what he will do next.
In any case, he ‘annoys’ America's - formerly - closest friends and allies the most.