The sudden outward expansion of the Undead did not arouse suspicion among others.
After all, creatures like the Undead tend to expand periodically. In this world, all major forces are constantly at war with each other, so there's no need for any particular reason.
Or perhaps, if they can improve themselves, that's reason enough; why would they give up?
Faced with the Undead's attack, the surrounding major forces and countries sent troops to suppress them. During this process, various nations secretly stationed their forces at the borders of other countries, continuously increasing their military strength.
If other countries suffer, they would seize the opportunity to expand their own territories.
This practice has long been established. Over the years, they need no excuse; just one order, and even the citizens would fight desperately in the attack.
Because no matter who it is, in this world, the most they can normally cultivate to is the Gold level.
