At the conclusion of the war the Ethiopians were the only contingent that had no prisoners to collect from the North Koreans since no Kagnew soldier ever surrendered. They had the additional distinctions of having never been bested in battle during the war. The Kagnew Battalion engaged in combat 238 times and won every encounter, as both aggressors and defenders. Another distinction was that they never left their dead behind, and it was noticed that there never seemed to be dead bodies of Kagnew soldiers on the battlefield. This earned them the respect of their American colleagues, while fostering the belief among their opponents, who had often never even seen black people before, that they were superhuman.

(http://www.autoadmit.com/thread.php?thread_id=4224716&forum_id=2#37958634)