Also the USA has nukes. No one’s going to invade us, because doing so would be a destructive act, and the final order of any armed state is to nuke its attackers. This is the same reason North Korea gets to remain its defiant self when their army could be obliterated in a few bombing runs. This isn’t even counting all the non-nuclear weaponry we have. Think of that annual budget of hundreds of billions of dollars in military spending that keeps getting raised every year…