Don't buy the media spin about who goes into the military. I met very, very few individuals in my time in the Navy who weren't of at least average intelligence. Most were considerably above that. Today's military is technologically advanced. With few exceptions the days of the sub-average ground pounder are long past.
And John Kerry, if he wasn't an insufferable, elistist snob, would know that.
elistist=elitist, of course