中原大戰
Guominjun troops tried to flee through Shanxi, but the Shanxi clique led by Yan Xishan maintained a very strict neutrality policy and attacked any soldiers that encroached their borders. Yan, an ex-Tongmenghui member, was sympathetic with the Guominjun but did not want his province drawn into civil war. He would go on to side with Feng during the Northern Expedition and Central Plains War.