well,m we currently spend more on SS, medicare, medicaid and other transfer programs + interest on debt than we take in from all taxes combined, so i'm not sure how you get there. we're literally in deficit before we spend a nickel on defense.

this is not to say that we could not save a ton by avoiding stupid wars that win us nothing and cost us much, but even if it went to zero, the "entitlements" would still have us in deficit.