Why was chiang Kai-Shek able to train a disciplined fighting force when he became the leader of the nationalist party?

Chiang Kai-shek was able to train a disciplined fighting force due to his military background and strong leadership skills, which he developed while studying in Japan and serving in the National Revolutionary Army. He prioritized military organization and discipline, implementing rigorous training programs and adopting modern military tactics. Additionally, he secured funding and support from foreign powers, particularly the United States, which provided resources and training to strengthen his forces. This combination of effective leadership, military strategy, and external support enabled him to create a formidable army for the Nationalist Party.