US Military could count as it's own country in oil usage. They also do a fair bit with reusable energy:
http://en.wikipedia.org/wiki/N...
And I know several other projects. But for Military readiness, it would be nice if they put a few billion more into supporting something like algae biodiesel or fusion and a few billion less into one more aircraft carrier (correct me if I'm wrong, but I believe the current fleet has around 11, more than the rest of the world combined?)
Off the top of my head, America's strategic reserve can cover fuel use for 60 days. However, since the biggest threat to America isn't any type of invasion force (no viable one exists), it would likely be economic and since the days of Hurricane Katrina, we've been shown to be unable to cope with peoples' extended needs.
So the Leadership's strategy should be to wean the country off of it's most dire dependencies. It should almost be the military's strategy as it would only positively effect them, but that runs counter to global force projection and stamping out the latest fires around the world.