The unit was the 442nd Regimental Combat Team of the 100th Infantry Battalion and what the men of the unit did in the face of overwhelming predjudice was incredible. There's an entertaining movie of the same name (Go For Broke! - 1951) that presents Hollywood's version of their story. It turns up on AMC and TCM occassionally. For more information, Googling Go For Broke will turn up some additional sites with the units's story.
Aloha,
Don