Bayan yakin duniya na biyu da kuma mika wuya naJapan , Burma ta shiga cikin tashin hankali na siyasa.Aung San, shugaban da ya yi kawance da Japanawa amma daga baya ya juya musu baya, yana cikin hadarin fuskantar shari'a kan kisan kai a 1942, amma hukumomin Birtaniyya sun ga hakan ba zai yiwu ba saboda shahararsa.^[77] Gwamnan Birtaniya Sir Reginald Dorman-Smith ya koma Burma kuma ya ba da fifikon sake gina jiki akan 'yancin kai, wanda ya haifar da rikici tare da Aung San da Kungiyar 'Yancin 'Yancin Fascist (AFPFL).An samu rarrabuwar kawuna tsakanin AFPFL kanta tsakanin 'yan gurguzu da 'yan gurguzu.Daga baya Dorman-Smith ya maye gurbinsa da Sir Hubert Rance, wanda ya yi nasarar dakile yajin aikin ta hanyar gayyatar Aung San da sauran mambobin AFPFL zuwa Majalisar Zartarwar Gwamna.Majalisar zartarwa a karkashin Rance ta fara tattaunawa don samun 'yancin kai na Burma, wanda ya haifar da yarjejeniyar Aung San-Attlee a ranar 27 ga Janairu, 1947. ^[77] Duk da haka, wannan ya bar ƙungiyoyin da ke cikin AFPFL ba su gamsu ba, suna tura wasu shiga cikin adawa ko ayyukan karkashin kasa.Har ila yau, Aung San ta yi nasarar shigar da 'yan tsiraru a cikin rukunin ta hanyar taron Panglong da aka yi a ranar 12 ga Fabrairu, 1947, wanda ake bikin ranar tarayya.An tabbatar da farin jinin hukumar ta AFPFL lokacin da ta yi nasara a zaɓen majalisar wakilai na watan Afrilun 1947.Wani bala'i ya afku a ranar 19 ga Yuli, 1947, lokacin da aka kashe Aung San da wasu mambobin majalisar ministocinsa, ^[77] wani lamari da yanzu ake tunawa da shi a matsayin ranar shahidai.Bayan mutuwarsa, an yi tawaye a yankuna da dama.An nemi Thakin Nu, shugaban gurguzu, ya kafa sabuwar gwamnati kuma ya kula da 'yancin kan Burma a ranar 4 ga Janairu, 1948. Ba kamarIndiya da Pakistan ba, Burma ta zaɓi ba ta shiga cikin Commonwealth of Nations ba, wanda ke nuna tsananin kyamar Birtaniyya a ƙasar. lokacin.^[77]