First, No, we really don't spend enough on the Military. If you want to spend less money on the Military try voting for Presidents who don't start wars (though since you seem like a liberal you probably thought you were doing that last time so joke's on you). Right now you have U.S. troops deployed in three active military conflicts AND patrolling the entire world's oceans while their budget is being cut. Soldiers in Iraq and Afghanistan don't have proper body armor to this day!
(And for those who think we've handed Libya over to NATO I'd point out that over 80% of NATO's military resources are U.S. Resources and the Supreme European Commander of NATO is an American Admiral)
Second any communication device used by the military is both encrypted like crazy and has remote wipe capabilities. Their walkie talkies use rotating, encrypted digital channels these days. So I don't think a cell. phone is going to be a gold mine of information. In fact, on the theory that smartphones could give soldiers access to documents they'd normally have to carry physical copies of the cell. phone actually increases security on the ground
Edit: To elaborate on the NATO point count the Aircraft Carriers. The U.S. has 12 in service. Every other country in NATO combined has 6.