On September 30, 1927,
Mao Zedong arrived at Sanwan (三湾) village of Yongxin (永新) county, just north of
Jinggangshan, with the remnants from the abortive
Autumn Harvest Uprising, and sent letters to both Yuan Wencai and Wang Zuo to ask their help to establish a communist base locally. On October 3, 1927, Mao's force reached the town of Ninggang (宁冈) and held a conference, at which Mao personally vetoed the suggestion to eliminate Yuan and Wang by force, and quickly established an alliance with Yuan Wencai. Wang Zuo actively seek to establish contact with Mao and in the late October, 1927, he successfully did so. With the help of Yuan Wencai, Wang met Mao Zedong at the village of Greater Well (Dajing, 大井) on October 24, 1927. Wang Zuo was initially somewhat wary, but as with Yuan, Mao approached Wang with a large gift of seventy
rifles and horse saddles, and the offer of Communist instructors to give his force military training, thus successfully convinced Wang to welcome him into Wang's base at Ciping (茨坪) on October 27, 1927. Wang provided Mao's men with 25 tons of rice and huge amount of money soon afterward. Mao Zedong sent only one cadre,
He Changgong (何长工) to assist Wang Zuo as the trainer and CCP representative, and He Changgong (何长工) helped him defeat a landlord militia unit headed by Yin Daoyi (尹道一), which had been harassing his men, he was won over. As winter approached, Mao withdrew from his forward base of Maoping to defend Jinggangshan from Dajing. In February 1928, the forces of Yuan Wencai and Wang Zuo were officially incorporated into the regular communist army as the 1st
Army, 1st
Division, 2nd
Regiment. Yuan was named as the regimental commander, and Wang as the deputy regimental commander, with He Changgong as the CCP representative (何长工). On February 17, they participated in a successful attack at Xincheng on a
battalion of the
Kuomintang's Jiangxi Army, killing the enemy commander and taking more than a hundred prisoners. Wang Zuo joined the CCP in April 1928. However, it must be said for Wang Zuo, it was more accurate to say he joined Mao Zedong's clique than the CCP, since his loyalty was mostly to Mao personally, instead of to the CCP, which eventually caused his downfall and final death when Mao lost the power struggle with
Li Lisan and
Xiang Zhongfa. Soon afterwards, Wang accompanied Mao Zedong to Lingxian county in southern
Hunan province in aid of
Zhu De. Jinggangshan had meanwhile been overrun by landlord militia and had to be reconquered. After Zhu De's soldiers joined the Jinggangshan base, they were merged with the existing forces to become the Fourth "Red Army". Yuan and Wang's 2nd Regiment was renamed the 32nd Regiment. Later in the year, Zhu De's 28th and 29th regiments crossed into Hunan. The 32nd Regiment was given the assignment of securing Maoping from the advance of the Kuomintang's Jiangxi units until his return. In January 1929, the bulk of the Red Army left Jinggangshan to establish a new base at
Ruijin, leaving around 800 ex-Kuomintang troops under
Peng Dehuai. Just after the New Year, it was agreed that Peng's men and the 32nd Regiment of Wang Zuo and Yuan Wencai should stay behind to defend Jinggangshan. Under intense pressure for about a week, Peng gathered together his three surviving companies and broke through the enemy blockade with heavy casualties. For the next year Yuan Wencai and Wang Zuo survived with their men in the mountains and may have returned to banditry in their guerrilla warfare. The Kuomintang's repeated mop up operations against them proved to be futile because the communist forces only confiscated property from wealthy landlords, and distributing to peasants. As a result, such banditry was viewed positively by the local general populace, which refused to corporate with the Kuomintang forces. ==Prelude to downfall==