Veteran Corporal Samwel Nthigai Mburia - who claims to have been born in 1906 and may be the oldest man in the world - served in Palestine and the Far East.
During a solo engagement, Charles sampled popular local food at Nairobi Street Kitchen, ordering a saag paneer kathi roll wrap and butter chicken samosa.
The British monarch, King Charles and Queen Camilla have begun a four-day state visit to Kenya, poised to acknowledge "painful aspects" of the countries' long shared history as local leaders press demands for reparations. King Charles on his first visit as monarch to a former colony, arrived in the capital, Nairobi overnight. Reuters reports that he touched down on the official RAF Voyager aircraft in Nairobi at 7pm UK time (10pm local) accompanied by his wife, Queen Camilla.