Igboland Biafra on May 30, 1967. Nigerian General Emeka Odumegwu-Ojukwu on this day made a declaration of independence of Biafra from Nigeria and became the head of state of the new republic. The Nigerian Civil War (or the "Nigerian-Biafran War") lasted from 6 July 1967 until 15 January 1970, after which Biafra once again became part of Nigeria. The Republic of Biafra was defeated after three years of war by the federal government of Nigeria from 1967 to 1970 with military support from the United Kingdom (strategy and ammunition), Soviet Union (ammunition), the United Arab Republic (air force), as well as
Guyana (1966–1970) Guyana (1966–1970) Guyana was a predecessor to the modern-day Republic of Guyana and an independent state that existed between 1966 and 1970. British rule ended on 26 May 1966, when Guyana was given independence from the United Kingdom by the Guyana Independence Act 1966, which transformed British Guiana into an independent Commonwealth realm or dominion, a sovereign constitutional monarchy with Elizabeth II, as Queen of Guyana. The monarch's constitutional roles were mostly delegated to the Governor-General of Guyana. The following governors-general held office: Elizabeth II did not reside in or visit Guyana during the time she was Queen of Guyana.