Another thing is that for example

There is a unit of warband just right behind an unit of swordsmen. So i am thinking of charging the Warband via the swordsmen. so i attack through the swordsmen.

What i want to know is do the charge bonus being inflicted on the swordsmen or the warbands. Because i right click on the warband. and since i pass through the swordsmen of course i am gonna be fighting them aswell.