Validation or conversion Kenya
Per ICAO Law. One who holds an FAA Airmen Certificate and legally fly any aircraft in a foreign nation long as it is domestic and you are appropriately rated in category and class. Should your flight take you internationally now one would have to hold at least an appropriate validation or certificate of said host country.
For example: I have flown an aircraft registered in Israel (No conversion Domestic).
Nigeria and Tanzania each were registered in these countries respectively (Cessna Citations) and hold validations for each country noted.