The Great Army of the Ten Thousand Soldiers Emperor Sweeps Across the Six Realms

In another world, nations compete by the strength of their armies, and the quality of their weapons determines the course of their national destiny. The protagonist is an expert in forging and improving weapons and military equipment. He creates standardized spears, heavy armor, and siege engines, then trains the strongest standing army on the continent. With superior arms, he crushes every rival, sweeps through the six kingdoms, and unifies the realm.