By E K Benj – Updated at 0841 GMT on Sunday 23 May 2021 NEW YORK- United Nations Secretary-General António Guterres on Friday announced the appointment of Martha Ama Akyaa Pobee of Ghana as Assistant Secretary-General for Africa in the Departments of Political and Peace-building Affairs and Peace Operations (DPPA-DPO). Ms. Pobee succeeds Bintou Keita…