The danger is the military can legally lie to you with promises of what you'll be doing when you enter, and in times of personnel shortfalls that might be true.

But they can also make you cannon fodder or a deck swabber.

And ask the reservists about military promises from Iraq. Oh you're in the National Guard? Yeah we're deploying you to a foreign country for years on end.

And once you're in the military, you can be summoned for duty if they need you.