Which one of these Chinese leaders was responsible for uniting China after the warlord period and leading China’s Nationalist Party?

Chiang Kai-shek led the Nationalist Party’s Northern Expedition, which brought much of China under Nationalist control and ended the warlord period. Sun Yat-sen founded the Nationalist Party but died before that unification, while Puyi was the last emperor. The correct choice is Chiang Kai-shek.

AI-written and checked against the verified answer.