There are several ranks in Skara for the soldiers to accomplish in order to serve their army.
Foot soldiers will not be allowed to do the same things sergeants or marshals do. As your rank within the army increases, you will unblock new features and become a respected member among the Skara community. For example; as a sergeant you will be able to take part in battles among factions and fight for the honor of your kingdom against all the others. As a lieutenant you will be able to acquire new equipment.
There are a lot of awesome features to unblock inside the game to become one of the most respected players inside Skara that will be unveiled soon. And finally, only marshals will be allowed to found new cities. Wouldn't you like to find a city with your own name inside the game?