After completing the change of the military, Ouyang Shuo tossed out a large scale military plan. This plan was what he had thought of after being forced slowly into a corner by the six tyrants of Handan.
The appearance of the mountain barbarians allowed this plan to work out earlier.
If Shanhai Town wanted to protect its lead, he needed to make use of this advantage. Since he had already built such a strong mixed camp, he naturally couldn't let them be cooped up in the barracks.
