I would be upset ... but I would go. I would try to get into something off of the front line if possible (ie .. fix computers at the HQ or something) ... but If they drafted me to the front line, I would fight and die for my country, even if I do not agree with many of the politics of the war. (I do not believe we should have gotten in to this war, but its a little too late for that. It risking my neck to serve would help others, and my options were to flee the country, make up an excuse and not go, let somebody kill me or my comradese without resisting, or kill those who wish death upon me, I would choose to kill and I would do my very best..)
EDIT: If they made me an infantryman ... I would want a big big gun ... like an M60 or something. Also, I would get pissed off if they called me private pyle, but calling me a disgusting fatbody would only slightly anger me.