At General Deng Hong's side-
The army of Yi Kingdom is not so big as compared to the army Da Kingdom presented in the previous war, Yi Kingdom only has around 7,000 soldiers for this war
As for the Sun Kingdom, the biggest Kingdom after the Xiong Kingdom, it has around 10,000 soldiers that are marching towards the Yi Kingdom.
Being so big and having a good population is surely serving General Deng Hong (from the Sun Kingdom) greatly as he got a vast army to command and for sure the war is going to be easy given how big the difference is.
Before leaving for the Yi Kingdom, General Deng Hong made sure that he brings the best soldier he has to guarantee a destructive victory, why?
Because, previously, General Deng Hong got the report about the army of Da Kingdom army and yet he still prepared only 5000 soldiers for Chiyou, which later became 2,000 only.