Original: Although his former unit, the 761st Tank Battalion, became the first black tank unit to see combat in World War II, Robinson's court-martial proceedings prohibited him from being deployed overseas, thus he never saw combat action.
Simplified: Although his former unit, the 761st Tank Battalion, became the first black tank unit to see combat in World War II, Robinson's court-martial stopped him from going with them. He never saw fighting action in the war.