The Honor of a Great Power (大国の威信, Taikoku no Ishin) is the ninth episode of Mobile Suit Gundam 00.

The AEU and the Union seem to have reconciled themselves to the existence of Celestial Being, but the Human Reform League is still determined to eliminate it. The Human Reform League launches an operation to track down the Celestial Being mothership Ptolemaios. Sergei Smirnov and his Chobu special forces team deploy huge numbers of tiny probes in Earth orbit. Sergei and Sumeragi match wits in a series of tactical feints, and Sumeragi realizes too late that the enemy's true objective.

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