The Second Terran Empire rebellion was a war between the Terran Empire led by Emperor Spock and the invading Klingon-Cardassian Alliance. Unlike their previous wars and thanks to Spock's reforms, the Terran Empire was too weak to face the Alliance so the war resulted in the fall of the Terran Empire and the reducement of theTerrans to a slave race. The war was later mentioned by Kira Nerys in a discussion with her prime universe counterpart during a crossover in 2370.

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