

Same sort of behaviour can be seen in tactical combat where they sometimes block their fellow teammates and have to take long circuitous routes. If enemies are bypassing your garrisoned fort, it may be because they have other target assigned and they have a nearby viable path because they see your fort not as a target but as an obstacle. To act as 1 tile chock points (cave entrances, bridges, mountain passes). Other times your early fort can steal important structures from nearby enemy cities.

Often you will find key structures like hearts or other resource nodes in places you don't want a city. To expand your domain and sometimes block off enemy domain.
