. . . "UNSC Implacable"@en . "UNSC Implacable (C-13)"@en . . "The UNSC Implacable (C-13) was one of the six Tenacious-class cruisers of the United Nations Space Command."@en . . . . . . . . . . . "The UNSC Implacable (C-13) was one of the six Tenacious-class cruisers of the United Nations Space Command."@en . . .