the Nerd army was very strong and Canthos was jelous. real jelous. so he thought of a plan, an evil, convulted plan that will swipe the nerds of exsistence. something that will make them suffer. and it was The Canthos Plan.

The Nerd army looked like this:  and the persian army looked like this:

so if if they went to war with each other, than obviously the Nerds would've won.

Canthos devised a sabatoge  plan to take down the nerds, Canthos is the  guy with  the mustache on the picture above (at the  top)

He payed the Roman army to give them a share  in cavalry and some weapons. You went and put the weapons on the ground and when the nerds came, they  picked up the weapons and kaboom a bomb has been detonated and yeah they all  died right there.