"On the Lingnan slave registration book, Li Yi touched the old scar on the back of his neck - three days ago he was the king of special forces, but now he is the orphan of a collaborator with the enemy. The Turkic cavalry has broken through Yanmen Pass, and the Chang'an court wants to use him as a 'remnant of rebels' to sacrifice the flag! When the blood soaked the prison clothes, the memory suddenly Surging: the sand table deduction of infantry and cavalry coordination, the anti-horse formation to break the cavalry charge, and even the night attack strategy of special operations... When he snatched Mo Dao at the execution ground and shouted, "Xuanjia New Brigade, follow me to defeat the enemy" - this time, the wind of the early Tang Dynasty must remember the temperature of the modern military soul!