Nice, but you should be able to pull back the squads from fights (especially trebuchet and archers, that are too easily lost because they keep fighting even if you tell them otherwise).
Nicely done! The idea is really cool, you should think of a deeper one-clic gameplay (more mechanics/strategies and upgrades maybe): That would be a hit :)
Nice game, but imho it could be better:
I agree with memoriex, and i find the speed and attack trainings kinda boring (def train is fun though).
The "speed" is really hard to read at times: white on yellow?
I find the effectiveness of attacks is hard to memorize. According to me the classes (firewall..) are not intuitive to memorize, and don't match with their respective colors. "Water-fire-earth" is a cliché, but something more usual like that could help. The whole icon of the attack should also have a color matching its class.
Good game though, and addictive. Keep it up