Ambassador, Permanent Representative of Nigeria, Geneva, Permanent Mission of Nigeria since 1987. President, Conference on Disarmament, 1990. Chairman, United Nations High Commissioner for Refugees (ESCOM), 1990-1991.
Chairman, Group of 77, 1990. Chairman, Working Group on Third Disarmament Decade, 1990. Chairman, Group of 21, Conference on Disarmament, 1991.
Member, Nigeria Delegation to General Assembly, since 1985. Director, United Nations Department, Ministry of External Affairs, Nigeria. Director, Bilateral Economic Cooperation, Ministry of External Affairs.
Dipl Association, Institute of the Studies of Dipl, Georgetown University, Washington, District of Columbia. Deputy Director, European Affairs Department, Ministry of External Affairs.