Other powers, accustomed to their original peaceful lives, could not make up their minds to take action in the first instance decided that the continent would surely fall into chaos. In contrast to these powers, Zhou Tian's situation was completely different.
Zhou Tian originally had nothing on this mainland. His foundation was not on this continent at all, so compared to the other powers, Zhou Tian was not afraid of failure. After all, all the territories he currently occupied on the mainland were territories taken by invasion. Even if he were defeated in the end, what Zhou Tian would lose would only be the gains he had made on this continent. Under the condition that his foundation would not be lost, Zhou Tian could always make a comeback, so he was not afraid to start a war.
So, since Zhou Tian thrived in chaos, once he knew which territories to avoid to prevent war with their owners, he immediately invaded other directions.