What steps did qin shi huangdi took to unify china?

He used brute force to unify China. He abolished feudalism and created 36 military districts in their place. He gave peasants land to cultivate and charged them high taxes. He used secret police to help.him crush dissent. He also established universal weights and measures in the land making business easier. He built roads and canals throughout the country. Thus he unified China.

Because he proposed that all the treaties should be made through the league of nations.