Due to Esdeath's intervention, the Western Non-Human Tribes were utterly crushed. Aside from a few soldiers who managed to escape, the vast majority were subjected to Esdeath's unbridled massacre, which effectively guaranteed peace on the Empire's western frontier for the next decade.
Ron and the rest of the Western Army watched in horror and simply gave up on pursuing the retreating tribesmen. They helped Zar up from the ground, dug Najenda out of the sand pile, and retrieved the Teigu, Executioner: Jörmungandr.
"With this, the West can finally be said to be completely safe."
Chapter 93