(Bingyin March fourth day), April 15, 1926, Feng Yuxiang retreat Chang Tso-lin to Beijing. April

1926 15 Feng Yuxiang national army withdrew from the Beijing-Tianjin line retreated south exit. Von portability retinue from of Suiyuan the PINGDIQUAN depart on March 20 went to the Soviet Union. Straight Fengtian not Von step down and give up the plan to destroy national army. April 7th straight Fengtian attack from the north and south of North China to attack the National Army, three from Shandong, Henan, Zhili; of Zhang Zongchang, (Lssdjt.com) Li Jinglin straight Lu coalition forces and Yan Xishan Jin army pincer attack from the east and west, The National Army is in a critical situation, on April 15, successively withdrawn from Tianjin, Beijing, retreated Nankou first-line. On the same day, Bong straight coalition forces entered Beijing. Bring the end of the National Army abandoned Kaifeng, Zhengzhou, the main retreat to Inner Mongolia, Gansu line. (History com) Chang Tso-lin's completely under control.