The warrior class is the military force for the Emperor and his many vassals. They mainly protect the noble and merchant classes, go to war for the vassals and the Emperor, and police the peasants. Under the rule of more benevolent vassals, they may protect the peasants just as fiercely as their noble masters and their merchant peers.
_In game play, the characters in the warrior caste cannot choose a divine class for their character class. Vassals are highly unlikely to enlist soldiers that may place their loyalty to the gods before the vassals themselves. Due to this, you have the option to take a divine class as your second class at a later time, but you may risk losing your status.
For similiar reasons, monks are forbidden, as well. Monks are more likely to place their loyalties to ideals rather than men, or countries._