Revision to my previous comment: "take" should be "takes," and after consulting the ratings guide, I gave this game a 2/5, which means "Didn't like it."
I agree with reconkool that you should be able to move your armies around. It seems to be a serious flaw in the game. Whenever I move, I always have to leave a weak spot behind, and the enemy take it over the next turn. This game is difficult to play and understand because of it. It is very sad that this game could have so good, but is bad. 3/5.
A very fun game, great songs, great badges, great gameplay, but needs something where if you don't have your sound on it still tells you if it's the right key you have. Still, 5/5 and favorite!