The trouble will never end in this way.
Emperor Yang Zhou understood this very well, but he didn't have any good way to solve the northern tribe.
Perhaps, he could make sure that they would not attack Fei Yang Kingdom during his reign.
But what about afterwards?
When the northern tribe has more people and has enough power to threaten Fei Yang Kingdom again, would they be the same?
They also needed powerful people who could lead Fei Yang Kingdom and ensure the safety of the entire kingdom. But human's lives are limited and the best they could do was to fight for a few decades.
It was impossible to last longer than that.
Emperor Yang Zhou frowned and then sighed.
He should not think about it for the time being. The most important thing for him to do was to make sure that the northern tribe would not take advantage of them in the upcoming war.
No matter how many times he needed to take, he would never let them off so easily.