> On other hand, who are we defending from and why are spending all this money on world police when we have a ton of internal problems?

Reminds me of this scene in Wag the Dog: https://www.youtube.com/watch?v=wwgPnYVg74Y

"The war of the future is nuclear terrorism. It is, and it will be against a small group of dissidents who, unbeknownst to perhaps their own governments, have blah blah blah blah blah. And to go to that war, you have to be prepared."