Defeated an Army of Millions and Became a Soldier to Restore the Country from Scratch

Inherited his father's million-strong expeditionary army. He was defeated and retreated all the way, and was sent back to his hometown. The army collapsed. Extremely talented in martial arts, but extremely poor in military ability If there is no destruction, no establishment, the commander becomes a soldier. Cultivate your military talents and use your father's reputation to compete in the Central Plains again!