Hua Yan fell into silence upon hearing this, pondering over the fact that the Commander had actually moved his troops?
Indeed, once he learned that Lu Zhiling was coming to Beian City with five hundred thousand soldiers, his three hundred thousand men were clearly no match. It was best to take advantage of the situation before Lu Zhiling made plans to capture the city and quietly shift his forces, which was the wisest move.
Moving troops through Yuanmu Ridge was an even better strategy. The expanse of Yuanmu Ridge's forests stretched hundreds of miles, and intentionally mixing numerous trails would naturally take more than a moment to investigate, especially if he split the three hundred thousand troops and moved them in different directions.
As the saying goes, a sly rabbit has three burrows. The Commander, having operated in the Northern Region for many years, likely had more than just one Underground City in Beian City.