African American combat troops?

I've been digging around the hyperwar site and found this:
Chapter XVIII: Ground, Air And Thr Asset Side
"Only at the end of the year did elements of the 369th Infantry come into contact with the enemy. At Wardo on Biak, a small detachment of the 369th consisting of 15 men and one officer (later supplemented by 27 more men and another officer), sent to protect radar installations, found the enemy active. Between 6 November and 16 December, the detachment killed 38 and captured one Japanese. At the end of the year, on 31 December, a similar detachment at Wari killed eight to ten Japanese in a fire fight. By the time the 369th left Biak on 31 March 1945 ,68 74 Japanese had been killed and 34 captured, with no casualties to the 368th. This, in general, was typical of the activities of the elements of the 93d Division, whether at Munda, Biak, Emirau, Hollandia, or Finschhafen. Some men were placed on patrol, guard, and tactical duties; some continued training; the

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For a more complete history go to:
Employment of Negro Troops

And yet more on Biak:
HyperWar: US Army in WWII: The Approach to the Philippines