The same question applies to people against it. Why aren't they out rallying, staging demonstrations and doing more than just bitching on the politics board of a bodybuilding forum where 15 people read it. 
Just because you support a war doesn't mean you have to go out and fight in it.
Well, I have done my anti war demos - which of course are useless really [especially here hehe]. Plus, no war is being waged in my name, nor are any of my dollars funding anything.
I just know for me - the day I feel my nation is truly in danger, and we are "at war" - I would help, as would my family. I come from a long line military family to begin and my male family would defend this soil to death....which would be pretty quick as we are tiny lol. Not saying that is how everyone should be, but that is me and us though, my dad would not sit off drinking beer thinking we might all be capped and expecting others to save us

The US is short of troops. They are extending tours. They want more people to enlist. So why then do people praise the war, think it is saving the US, claim they love their country but not enlist? Something does not add up there to me. Just my opinion.