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.
King Charles has expressed his greatest sorrow and deepest regret for atrocities suffered by Kenyans during their struggle for independence from British colonial rule.