Military spending has spawned huge amounts of both direct and indirect innovation. Aviation and the space program, the internet, scores of "trickle down" consumer electronics such as GPS, Popeye (created to sell a surplus of canned spinach after WWII!), the list goes on and on. Plus there's the education of large numbers of the population that would otherwise lack opportunity.

The doctrine of "small government and a strong military" is an oxymoron. Military spending is an extremely effective form of high tech government subsidy. Of course the downside of having a huge military is the temptation to use it inappropriately...