Eunoch Slaves, also known as Eunoch Warriors, are eunuchs granted an active role in the Arabyan military.[1a][2a] Eunuchs are only rarely slaves in Araby; more often they are individuals brought up and trained as warriors or guards. They are unusually steadfast and loyal.[2a]
One exception is in the kingdom of Songhai -- its king is said to be a powerful ruler with such eclectic tastes that he has more eunuchs in his harem than wives.[1a]