The Regent's Burden in the Ming Dynasty Chapter 140

There is a plain below Jiaxing city.

But the plains of the south are very different from those of the north.

Because of the abundant rainfall, the plains in the south are often accompanied by a large number of rivers and ditches for drainage purposes.

Under normal marching conditions, it is easy to pass through these places because there are many bridges.

Even if there were no bridges, most rivers and ditches were not very wide, so it was not difficult for the army to cut down trees and build temporary bridges.