The results of the lengthy Niger ambush investigation are to be unveiled Thursday.
Defense Secretary Jim Mattis discussed Niger following new reports about the investigation into a deadly October ambush.
A classified Pentagon report attributes the deaths of four U.S. soldiers in Niger to a list of military shortcomings.
The military has begun briefing the families of the four troops killed in the Oct. 4 Niger ambush on the official version.
The Air Force is building a base for armed drones, a new front in America's battle against the extremist threat in Africa.
The U.S. special operations command in Africa on Wednesday opened its annual Flintlock exercise in Niger.