Rebirth of the Deposed Prince: Guarding the Border for Three Years, I Am Invincible

What is it like to guard the border? Qin Feng traveled through the Qin Dynasty and became a wasted prince. He refused to seize the legitimate son or fight in the palace, and chose to guard the border and become a local emperor! As the saying goes, if I have military power in my hands, I own the world. Guard the border for three years, build red cannons, build warships, and raise a large number of troops! What? The emperor wants me to hand over a hundred thousand troops? So what are you waiting for? Fengtian Jingnan!