When you meet an enemey you get the pre-battle screen designed to show you relative strength of your army vs. enemies army, to help you decide wheter to retreat or fight.  But it seems that the relative strength data is incomplete...it only shows the characteristics of one of the units inthe stack, not the strength of the entire stack, and so can lead to bad decisions.  It seems like the purpose of this screen can only be met if the relative strength of ALL the units in each army's stack is shown