Overlord (WN) - Volume 1 Chapter 43

... did not take part. They believed that strength was everything, and had the most strength among all of the tribes.

It was the tribe whose cooperation was the most needed for this war.

However, since they had no communications with the other tribes, no one knew what sort of tribe it was. Who was the current chief? Since there was no information on such matters, going alone was extremely dangerous. In addition, since this tribe took in the remnants of the two destroyed tribes ...