Yes, it's odd to see the one country that DOES invade other people quite frequently (the USA) yelling about threats from other countries all the time. Those other countries are deeply afraid of the USA, and that's why they arm themselves and bluster. It's exactly what a small dog does when he's scared. He barks and shows his teeth, in hopes that the big dog won't kill him. It may be a forlorn hope, but it's the best hope the little dog has in his armoury.