The Tuskegee Airmen was the popular name of a group of African American pilots who flew with distinction during World War II as the 332d Fighter Group of the U.S. Army Air Corps.
They were not involved in grounds operations, so were not in apposition to liberate Holocaust victims. However, one could argue that because of their impressive combat record, there were able to hasten the end of the war, which allowed ground forces to liberate Nazi Concentration camps.
In the broad sense of the question, all Allied forces in Europe made some contributions to the liberation, although the ground forces that actually entered the camps are credited with the actual liberation.
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