- US trip to Africa is long overdue, says Dr. Brahima Sangafowa
- Rex Tillerson should focus on "defense, diplomacy, and development," he says
Dr. Brahima Sangafowa Coulibaly is a senior fellow and director of the Africa Growth Initiative at the Brookings Institution, a nonprofit public policy organization based in Washington DC.
The opinions expressed in this commentary are his own.
(CNN)US Secretary of State Rex Tillerson is on a trip to five countries in Africa -- Ethiopia, Djibouti, Kenya, Chad, and Nigeria.