https://sofrep.com/news/us-drone-malfunctions-over-niger-makes-emergency-landing/ explains the background to that emergency landing away from its usual base of Niger Air Base 201, located around 5 km southeast of Agadez. The U.S. military is present at the request of the Government of Niger, said U.S. Army Gen. Stephen Townsend, Commander, U.S. Africa Command in a public release dated November 2019. “We are working with our African and international partners to counter security threats in West Africa."