Nyorai kuenderera mberi kweiyi ndima - Rusununguko rweBangladesh rwakaziviswa musi wa 26 Kurume 1971 panguva yekurinda kwekutanga naSheikh Mujibur Rahman. Chimwe chiziviso chakaverengwa musi wa27 March 1971, naMajor Ziaur Rahman, achimiririra Sheikh Mujibur Rahman. Major Zia (uyo akanga ariwo BDF Sector Commander weSector 1 uye gare gare weSector 11) akasimudza brigade yakazvimirira yeZ Force., Chittagong uye kurwisana kweguerrilla kwakatanga. Vanhu veBangladesh ipapo vakapinda muhondo yokuwana rusununguko kubva kuPakistan. Rusununguko rweBangladesh rwakawanikwa kuburikidza nehondo yemwedzi mipfumbamwe yekurwisana nePakistan Army, uye vashandi vavo kusanganisira maRazakars ane mauto ayo akauraya vanhu vanenge mamiriyoni matatu, maererano neAwami League neIndia zvinyorwa, muBangladesh War of Independence uye Bangladesh Genocide
. BDF, gare gare nerutsigiro rwemauto kubva kuIndia vakakunda Mauto ePakistan vachipedza hondo musi wa 16 Zvita 1971 mushure meKuzvipira kwePakistan.