The leaders of Zimbabwe and Equatorial Guineaare calling for African nations to have more powerand influence at the United Nations.President Robert Mugabe of Zimbabweand President Teodoro Obiang Nguema of Equatorial Guineasay the continent should have at least one permanent seaton the powerful U.N. Security Council. The two leaders spoke during a visit to Zimbabwe by Nguemaas they prepare for the meeting of the African Union General Assemblylater this month in Ethiopia.They also spoke about peace, security and terrorism in Africa.And Nguema said African nationsmust work to become economically independent,just as they have become politically independent.He said Africa should have two seats on the U.N. Security Council.But the continent should at least have one, he said,with the power to veto, or cancel, resolutions."I think that is the revolution which Africa looks for," he said.Mugabe has served as president of Zimbabwe since 1987;Nguema of Equatorial Guinea since 1979.The United States, Russia, Britain, China and Francehave permanent seats on the council, with veto powers.There are also 10 non-permanent members.These nations serve on the Council for two years.They cannot veto resolutions.