As the Tujue large troops began to retreat north, the army of Great Sui also began to closely follow behind.
According to the plan of Zhang San and Wang Junwu, the Sui army was divided into three routes, with the central army led by Kaihuang himself.
The left route was Zhang San's Divine Martial Army, and the right route was Wang Junwu's Jin River Army.
The armies on the left and right flanked the Tujue troops on the left and right rear wings respectively, one to the west and one to the east.
Once the Tujue turned around to counterattack, they could surround them and grind them into the ground.
If the Tujue failed to find a suitable opportunity, then within a few days, they would be "escorted" out of the Longyun Path.
In that case, this battle would signify the complete defeat of the Tujue.
Although Zhang San knew that this would mean fewer military merits for many soldiers, at least everyone would survive, trading the least risk for the most extensive victory.
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