 Nyorera kupfuurira kweiyi ndima - Pakupera kweNorthern Expedition, hurumende yeKMT muNanjing yakatanga kuzivikanwa nemasimba ekunze sehurumende yepamutemo yeChina. Zvisinei, ikoku kwakatungamirira kukuderera kwechiuto chechiChinese uye nzvimbo muManchuria. Zhang Xueliang, akatsiva baba vake, Zhang Zuolin, akaita chisarudzo chokukurukura nevatungamiriri veKMT muNanjing nokuda kwokuzivikanwa. Nanjing yakasarudza, zvisinei, kuti NPA yaizoparadzwa zvizere, zvichitungamira kuNorth East Flag Replacement. Panzvimbo payo, madzishe ehondo omunzvimbomo akavamba kudzora Manchuria; vanhu vemapurovhinzi okuchamhembe kwakadziva kumabvazuva vakatambura nokusagadzikana kwenzanga kunowedzera, uye chiremera cheChina chakapunzika munharaunda yacho, chichigadzirira nzira yokupinda kweJapan muna 1931zvichitevera Chiitiko cheMukden. 