The Luo Ze Empire, when it had a large number of soldiers, might have been able to exert pressure on multiple battlefronts simultaneously.
But once numbers dramatically decreased, whether it was maintaining pressure on several fronts or trying to occupy the vast expanse of Wansheng Country, it was essential to gauge one's strength accordingly.
Once the elite troops of the Luo Ze Empire became too scattered, Wansheng Country needed only a few particularly strong forces to stabilize the situation.
It might be difficult for a single person to turn the tide of battle, but after depleting the enemy's forces and then deploying a particularly elite unit to attack Luo Ze's elite, it would become quite simple.
Regrettably, it was not an overnight process to bring about a situation where elites clashed.