I gave it 5/5, I love it how it is. However, SpinalJack’s suggestions below are pretty good and I second them. The only thing that won’t work really is making enemy armies weaker based on where you attack, simply because the enemy never attacks you. That does, however, inspire an idea for a deeper sequel that uses this gameplay combined with a Risk-like strategy/conquering game, with concepts like supply lines that you can cut off and whatnot by attacking certain territories at certain times.