[ars]

Very little. Most of the military budget goes to research of one kind or another. The rest goes to pay salaries for all the military employees.

[prawn]

Are you just making that up? R&D is around 10% of the US military budget (and the US military budget is roughly 50% of the world budget).

If the construction, deployment, staffing, etc was pointed towards space research and exploration, we'd be able to push forward all sorts of projects.