Fu Zuoyi
On August 16, Itagaki arrived at Nankou and began an enveloping attack on the right flank of 13th Corps, making a five pronged attack at Huanglaoyuan. The 7th Brigade of 4th Division under Shi Jue was moved to block this maneuver, and reinforcements of Li Xian-zhou's 21st Division and Zhu Huai-bing's 94th Division were brought up, engaging in days of heavy fighting. On August 17 General Yan Xishan, Director of the Taiyuan Pacification Headquarters, directed the 7th Army, under Fu Zuoyi, to move its 72nd Division and three brigades by rail from Tatung to Huailai to reinforce Gen. Tang Enbo's forces.