James who transmigrated into a chaotic world is only a small figure in the world. Leading a small tribe through the Northern Pass, he knew of what will happen in advance The Empire will fracture, the princes will rebel, and the world will be in chaos! And his tribe will be annihilated and his people will be killed and enslaved! This is not a good era to live. In this chaotic era, the only way to survive is to fight! In blood and fire, he will be baptized into an Overlord that would shake the world! [ The character also has a system that will help him to navigate this new world. Enjoy as he begun building a new kingdom in a chaotic world]
Even in the case that the Utgard tribe won, they would not be able to compete with the Brolgadhr inherent advantage where they have large area of control.
Even if Utgard could take back the Kazan area, there is still to many things that could go wrong.
And to fight and destroy the Brolgadhr tribe with the strength of one tribe, especially an outsider tribe like Utgard would be an uphill battle.
It would be a long and protracted war and knowing how cunning Mayeux is, he would surely take some advantage to make sure that even if the Utgard won the first few fights, in the end, the war would be won by the Brolgadhr tribe. Not to mention the Utgard tribe objective is different from the Brolgadhr tribe objective.
Not to mention that it is rightful for a branch of Kazan descendant to take Kazan land.
Altai, Nurkazan and Dayan tribe which also borders the Kazan old area could object.
But they do not have any sufficient reason to object.