Jiang Lin, a modern special forces instructor, accidentally fell into an abyss during an exercise. When he woke up, he found that he was the bastard of a run-down military family in the Northern Dynasty. In this era, the dynasty was decadent and the border was at war. His Jiang family was full of loyal people, but they were squeezed out by the powerful, leaving only the old, weak, women and children. Jiang Lin originally wanted to live a stable life, but was forced to be involved in the whirlpool of his family's life and death. Relying on modern military theory and fighting skills, he repeatedly made extraordinary achievements at the border, gathered refugees, trained new troops, and fought his way out of desperate situations. However, due to his great achievements, undercurrents surged above the court, and he gradually discovered that this time travel was no accident - this land thousands of years ago actually had a continuous cause and effect with his previous life. The first volume tells that he rose from scratch at the border and defended the isolated city with tens of millions; the second volume tells that he led his cavalry to sweep across the world and reshape the world order, but he had to make the final choice between retirement after success and the suffering of the people.
