After teasing Chen Hengchang for a while, Lv Hua left Jiangnan and crossed the Wanshan Ridge, arriving at the territory controlled by the Da'an New Dynasty.
At this time, the Da'an New Dynasty and Chen Hengchang's domain were divided with the Wanshan Ridge as the boundary, with the southern side belonging to Chen Hengchang and the northern side under Da'an's control.
The eastern part of the Wanshan Ridge is filled with rolling hills; although there are no steep mountains, the terrain is extremely complex, and there are only three main roads crossing the ridge. These three roads were originally important passages between north and south in Da Rong.
Now, with both sides using Wanshan Ridge as the boundary, simply blocking these three main roads can trap the opposing army on the other side of the ridge.
Of course, there are many smaller paths within the ridge, and Lv Hua's group certainly didn't take the main roads; they crossed the ridge along rugged trails.
