The CCP launched the Fujian Incident in the Jiangxi Soviet Area, using the excuse of the "AB Tuan" to brutally purge the Jiangxi local faction and the 20th Red Army, resulting in the execution of two to three thousand people.
The Soviet Union, through multi-channel and large-scale financial transfusions, supported the CCP in maintaining its military and political machinery when it was being encircled and suppressed by the Kuomintang.