(Alright, I guess Reina is standing, but that means he's got two Ritter Hex on either side of him.)<br/><br/><br/>The Knight adds something.  "The job of the men at the border is to protect against the other men on the other side of the border.  More men on either side means they are defending against more men.  There are no other significant duties on the border garrisons.  More men is more wasted men."