Defending the Border with Iron Blood: from Soldier to Supreme Emperor

The fictional continent is divided into the Yong Dynasty as the main power. The territory is vast, but the government is corrupt in the last years. The emperor is incompetent, the eunuchs and their relatives are fighting for power, and the central government is unable to control the border. In the north, there are barbarian tribal alliances that repeatedly go south to plunder. In the west, there are feudal separatist forces ready to move. In the south, floods occur frequently, the people are in dire straits, and the world is beginning to be in chaos. Dayong's military system: small soldiers → commanders → centurions → commanders of thousands → lieutenants → generals → partial generals → generals → generals at the border → generals at the border. Military power progressed step by step. The border generals held heavy troops, which easily led to the formation of separatist regimes.