 The dispute was eventually resolved when Ethiopian emperor Haile Selassie I invited the two groups to Addis Ababa, where the OAU and its headquarters were subsequently established.The Charter of the Organisation was signed by 32 independent African states.At the time of the OAU's disbanding, 53 out of the 54 African states were members; Morocco left on 12 November 1984 following the admission of the Sahrawi Arab Democratic Republic as the government of Western Sahara in 1982.