Victory Song of the Resistance (反抗の凱歌, Hankou no Gaika) is the fifteenth episode of the Second Season of Mobile Suit Gundam 00.

The Ptolemaios 2 has received supplies from Katharon, and repairs are now in progress. But it cannot break through the Federation's siege without the fighting strength of the 00, and Setsuna has not yet returned to the ship. While the Ptolemaios 2 wages a defensive battle, news arrives of a coup d'etat within the Federation itself.

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