Rubuta ci gaba don wannan sakin layi - Babban mahimmancin Unitedungiyar Unitedungiyar ita ce haɗin gwiwa a China tsakanin Jam'iyyar Kwaminis ta Sin da Kuomintang na ƙasa, wata manufa da Stalin ya kafa. Manufofin United Front a kasar Sin sun rushe a 1927, lokacin da shugaban Kuomintang Chiang Kai-shek ya kashe 'yan kwaminisanci na gida kuma ya kori duk masu ba da shawara na Soviet, musamman Mikhail Borodin. Wani ɗan gajeren yaƙi ya ɓarke a 1929
yayin da Soviets suka yi nasarar yaki don kula da Railway na Gabas ta Tsakiya a Manchuria.