A ranar 30 watan Mayun 1967 ne Gwamnan Soji na Yankin Gabashin Najeriya Laftanal Kanar Chukwuemeka Ojukwu ya ayyana yankin gabashin kasar a matsayin kasa mai cin gashin kanta wadda ta balle daga Najeriya kuma ya sanya mata suna "Jamhuriyar Biafra".
