WE have US bases there but discreet.
Interesting story: our area priest for our Knights of Columbus branch was a missionary priest from Africa and came back stateside after many years there..
Told us around 2013 or so, his village was hit by a disease not known to science (maybe covid who knows). The idiot UN guys were useless but when he went to US base for help (being a US citizen helps). They gave him vaccines.
Now how did the US military know which specific disease it was? They just handed it to him for free. Fast forward, he still doesnt know what it was and the village was inoculated. Until now, he doesnt know what’s in those vials but it saved many lives in his parish.
Doesn’t surprise me. U.S. Army has long had an interest in tropical medicine. Dates back at least to WW2 and Stillwell in Burma. When I was in Panama there was a research group there unpacking and researching things Stillwell’s medical staff had collected 50 years earlier.
There are hundreds of common diseases they “know” nothing about in Africa, but the US has seen them many times in other places.
If the base there was dealing with sending troops into the bush, they would know what was needed. In my case it was the dreaded Gamma Globulin shot! That was a “literal” pain in the butt.