Zhang Xin saw with his own eyes that this group of soldiers was fooling, according to the fortification system of the Tang Dynasty, the repair of those city walls was to be repaired with grass and wood ash and wall tiles.

This process is not only rigorous, but also needs to be very careful and not make the slightest mistake. All this must be carried out under the command of the craftsmen, and at the moment these soldiers are using branches and grass roots, casually fooling things.

In this way, the city wall does not have to wait for the army to attack, once it is dried......

Chapter 49 of "Crossing the Tang Dynasty with My Own Hands" The tofu scum city wall is being hit by hand, please wait a while,

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