Powell: United_States general who was the first African- American to serve as head_of_staff; in seguito ha servito come Segretario_of_ State sotto il Presidente _ George_W._Bush (nato in 1937).
Powell : United_States general who was the first African- American to serve as head_of_staff ; in seguito ha servito come Segretario_of_ State sotto il Presidente _ George_W._Bush ( nato in 1937 ) .