Biafra, officially the Republic of Biafra, was a partially recognised state in West Africa that declared independence from Nigeria and existed from 1967 to 1970. Its territory consisted of the former Eastern Region of Nigeria, predominantly inhabited by the Igbo ethnic group, but with sizable chunks of the region belonging to the Ijaw, Efik, Ibibio and other tribes. Biafra was established on 30 May 1967 by Igbo military officer and Eastern Region governor Chukwuemeka Odumegwu Ojukwu under his presidency, following a series of ethnic tensions and military coups after Nigerian independence in 1960 that culminated in the 1966 anti-Igbo pogrom.