During his years in power, Amin shifted from being a pro-Western ruler enjoying considerable support from Israel to being backed by Libya's Muammar Gaddafi, Zaire's Mobutu Sese Seko, the Soviet Union, and East Germany. In 1975, Amin became the chairman of the Organisation of African Unity (OAU), a Pan-Africanist group designed to promote solidarity among African states. Uganda was a member of the United Nations Commission on Human Rights from 1977 to 1979. The UK broke diplomatic relations with Uganda in 1977, and Amin declared that he had defeated the British and added "CBE" to his title for "Conqueror of the British Empire".