19361February 12. General Zhang Xueliang and General Yang Hucheng invaded China step by step. At the critical juncture of national subjugation and extinction, the Chinese nation resolutely launched the An Incident, carried out "military remonstration" and forced Jiang to resist Japan, thus realizing the idea of saving the country by stopping the civil war and resisting Japan unanimously.

After the Xi Incident,1April, 937, General Yang Hucheng was forced to resign as director of Xi 'an appeasement office and commander-in-chief of 17 Route Army. 1June, 937, Chiang Kai-shek ordered him to "go abroad for inspection". 17 The Route Army has since embarked on a road that was gradually weakened, dismembered and destroyed by Chiang Kai-shek.

Great division

Before the Xi Incident, the 17 Route Army led by Yang Hucheng had two armies, namely the 38th Army and the 7th Army. Sun Wei and Feng Qinzai are viceroy. They are in charge of 17 Division, 42 Division, two reorganization divisions (teachers are Sun and Feng Qinzai respectively), three guard brigades and directly affiliated units, with a total of 28 regiments and more than 60,000 people. From the Xi incident to Yang Hucheng leaving Xi 'an to go abroad, the 17 Route Army was divided and bought by Chiang Kai-shek. First, some right-wing officers, such as Feng Qinzai, commander of the 7th Army and commander of the 42nd Division, came to Chiang Kai-shek (later expanded into the 27th Route Army by Chiang Kai-shek, and the 42nd Division and the 1 69th Division were under their commanders Liu Yanbiao and Wu Shimin), and then guarded the royal army department of the1brigade, and Shen Xiting and Tang Deying of the 2nd Brigade (later became independent) 17 Route Army, composed of Sun Ren's 38th Army, has two reorganization divisions, namely 17 Division and 177 Division (teachers are Zhao Shoushan and), two guard brigades and two directly affiliated regiments-training regiment and cavalry regiment. 17 Route Army has the serial number.