Why are armies allowed to "blitz"?
Multiple battles in a single turn.
Why are armies, with movement points left, allowed to fight multiple battles each turn? If you have a stack of doom with a number of +1 movement bonuses (4-5 moves per turn), you can clear half a map along roads.
To me, this seems a bit too powerful. IMO once you fight, you should be out of moves. Or at least not be able to engage in combat again that turn.