It has the potential of being a really great game - but it's not.
I played it for almost 4 hours using different strategies on level 3 - and no matter what I could do the computer would always pop armies out of nowhere.
Fizzer - good try, but it's not quite there.
Finished on hard mode. You said "Everyone who thinks this game is not challenging enough: please complete the game in Hard mode, and then we’ll talk again!"
So... Let's chat.
Good job! Did you do it without spamming Space+Ctrl?