We Didn't Ask for This, But This is What We Do.
I have recently discussed a very interesting topic with a close friend of mine. I asked her this question: "Knowing that we had to engage militarily with one nation, which nation should it have been: China, North Korea, Venezuela, Iraq, Iran, or Syria." All things considered, I concluded that such was definitely a good question.
I think that an invasion of China would be a waste of military resources. I'm not saying that we'd lose, but I am saying that it'd definitely be a fight. The problem with invading North Korea is that we've tried that before, and as we can see, it was not as effective as we would have liked. Venezueala is a joke for now. Iran is a beast. Iraq with Saddam was a wise choice, and Syria is a threat only because of its allies.
Now, we know that it's absurd to stand back and allow dictators to run the earth. We tried that approach in the 1920's and all of Europe was devastated by its consequences. So, now we have the unwanted but desparately needed role of being the global police. We're not perfect, but I think we're dang good at it.