. . . "Destroyer Division 5"@en . "UNSC Sydney (D-30)"@en . . "UNSC Sydney"@en . . "The UNSC Sydney (D-30) was one of the twenty Security-class destroyers, and served both the United Nations Space Authority and the United Nations Space Command."@en . . "The UNSC Sydney (D-30) was one of the twenty Security-class destroyers, and served both the United Nations Space Authority and the United Nations Space Command."@en . . . . . . . . . . .