Jozu is a fictional character from One Piece and one of the commanders of the Whitebeard Pirates’ 3rd division. Known as "Diamond Jozu," he is a towering, heavily built fighter with immense physical strength and the ability to turn his body into diamond. He serves as a loyal and powerful officer under Whitebeard, playing a major role in the Summit War at Marineford, where he helps defend his captain and crew against the Marines and the World Government.