This question has the same terms as the PolyMarket market: https://polymarket.com/event/another-african-coup-by-october-31/another-african-coup-by-october-31

This question will resolve to "Yes" if there is another coup resulting in the removal of an African country's head of government from power for any length of time between August 30, 3 PM ET and October 31, 2023, 11:59 PM ET. Otherwise, this market will resolve to "No".

The primary resolution source for this market will be a consensus of credible reporting.

(I checked, and the Gabon coup started before 3PM ET on August 30)