11:10 there isn't a cap for an army it just depends on how many people live in a town. You see it more often when you turn on unlimited expansion and houses for kingdoms
Eren Yeagar joined Lightning Mcqueen to fight Freddy in order to increase their colonies, then after having enough colonies, they made peace peace with Freddy and went against Lightning Mcqueen. After that, when Mcqueen and Freddy made an alliance, Eren declared war on both, incredible