Kammala wannan jumlar: An sauya sunan Gabashin Pakistan daga Gabashin Bengal ta hanyar Tsarin Unitaya na Firayim Ministan Pakistan Mohammad Ali na Bogra. Kundin Tsarin Mulki na Pakistan na 1956 ya maye gurbin masarautar Pakistan da jamhuriyar Islama. Dan siyasar Bengali H. S. Suhrawardy ya zama Firayim Ministan Pakistan tsakanin 1956 zuwa 1957 kuma Iskander Mirza ya zama shugaban kasar Pakistan na farko. Juyin mulkin Pakistan na 1958 ya kawo Janar Ayub Khan zuwa mulki. Khan ya maye gurbin Mirza a matsayin shugaban kasa kuma ya kaddamar da yaki da shugabannin dimokuradiyya. Khan ya zartar da Kundin Tsarin Mulki na Pakistan na 1962 wanda ya kawo karshen zaben gama gari. Zuwa shekarar 1966, Sheikh Mujibur Rahman ya zama fitaccen shugaban adawa a Pakistan kuma ya ƙaddamar da motsi na maki shida don cin gashin kai da dimokiradiyya. Tashin hankalin 1969 a Gabashin Pakistan ya ba da gudummawa ga hambarar da Ayub Khan. Wani janar, Yahya Khan, ya kwace kujerar shugaban kasa kuma ya zartar da dokar ta baci. a 1970, Yahya Khan ya shirya babban zaben tarayya na farko na Pakistan. Jam'iyyar Awami League ta fito a matsayin babbar jam'iyya guda daya, sannan Jam'iyyar Jama'ar Pakistan ta biyo baya. Sojojin soji sun yi jinkiri wajen karɓar sakamakon, wanda ya haifar da rashin biyayya ga farar hula, Yakin 'Yanci na Bangladesh da kuma
Kisan kare dangi na Bangladesh a shekara ta 1971. Pakistan ta Gabas ta rabu da taimakon Indiya.