One reason Germany has been able to afford more entitlements for its citizens like socialized healthcare is due to the fact that it virtually had no defense expenditures for decades. We can say the same for most of Western Europe. The US has subsidized the defense of the EU for decades.
As for occupation, I wonder what Germany did in the 20th century to merit it?
No one is forcing the USA to keep it's European military bases, and no one is forcing the USA to spend 3.5% GDP on its defense budget. You do that out of your own free will. And you spending that amount of money on military, has no bearing on whether you could have free health care or not, the obstacles to that are purely political.
You will get what you wish sooner than later because our defense spending is unsustainable and we won’t have a choice in the end. We’re starting to see the cracks with terrorists hijacking cargo ships without repurcussion.
You really have to understand and look at the numbers, and also model the economics of what you're writing about, to get a sense of how wrong you are. May i suggest you start on this big quest by looking up how inflation gets imported and exported?
Not in a post, but here's a few books for you:
Seignorage on a global reserve currency: read "the global minotaur", the story of oil: read "Oil, Power, and War" by Matthieu Auzanneau, and for completeness: "The brothers" by Stephen Kinzer.
As for occupation, I wonder what Germany did in the 20th century to merit it?