When it comes to politics, it is usually about influence, power, and money, and the only thing that has kept us from more world wars is that we are so tied economically to so many of these countries. We are a cash cow for China so even though they'd like to take us down, they're smart enough to know that in the scheme of things with our purchasing power and the over $500 billion dollar trade surplus they get from us every year, they'd be tanking their economy.
With the exception of North Korea, we conduct trade in one way or another with all military superpowers. The key is to make sure the world needs us more than we need the world and unfortunately this isn't a strategy of either political party as they've sold our souls every time they borrowed money from other countries and put us further in debt. We've got to stop them before they take our great Republic down like the Senators of Rome did theirs. If theirs can fall, ours can in a heartbeat.