The flip side is a candidate that is immobilized about the idea of sending ANY troops into harm EVER. That's one of the problems I saw in the Clinton Administration foreign policy (that and the mistaken belief that Yasser Arafat was anything BUT a terrorist, bu that's a differen argument). Whether Bush is too likely to send troops and keep them is up for argument (I don't believe so), but my fear is that Kerry -- whose 1971 public testimony before Congress showed both a hatred of the military and a distrust of the military he has yet to disprove after a decade and a half of voting down providing our troop with the money and equipment needed.
I often regret not serving in the military, but my health issues would prevent me from much duty and my parents' funding of my college education requires my completing my degree, but I think the more important thing than military service is thoughts on the military. Many civilians make for great political military figures (example: Rumsfeld kicks SO much ass as SecDef and Bush, with only Guard exp, is respectful of the military while retired-Lieutenant Kerry is not...)