Zhao Hai wasn't the only one who hadn't been to the Roson Empire. Even Laura and the others hadn't been there. Therefore, if they wanted to go there, they would have to understand the place.
However, Xu Wanying had been to the Roson Empire before. He had wandered there for a while before coming to the Arkas Empire, so he had a certain understanding of the Roson Empire.
Zhao Hai asked Xu Wanying to tell him about the situation in the Luo sen Empire. The Luo sen Empire was the most powerful country on the continent. It had 150000 soldiers stationed at the hundred battle Fort all year round. Among them, 50000 were mounted on magical beasts, and 100000 were infantrymen. The Luo sen Empire's heavy infantrymen were definitely one of the strongest soldiers on the continent. They would not be at a disadvantage even if they were to face the cavalry head-on.