Terran Rebellion
In the Mirror Universe, the Terran Rebellion was an uprising by the Terran slaves of the Klingon-Cardassian Alliance in the early 2370s. Against overwhelming odds, the rebellion scored several important victories against the Alliance and restored hope to the defeated slaves.
In 2370, incited by stories from Julian Bashir and Kira Nerys of a free Humanity in the "normal" universe, Terran captain Benjamin Sisko rejected the authority of Intendant Kira Nerys and escaped from Terok Nor aboard his small raider. (DS9: "Crossover")
The charismatic Sisko managed to raise a full-scale rebellion, gathering together a band of troops and ships based in the Badlands. Although Sisko was killed trying to reach Terok Nor to convince his former wife, Jennifer Sisko, to join the Terran cause, the rebellion continued on, led by "Smiley" O'Brien, with a little help from the "normal" version of Sisko. (DS9: "Through the Looking Glass")
In 2372, the rebels scored their first major victory: the capture of Terok Nor from the Alliance. In order to maintain their power and defend their new conquest, the rebels built a new warship, a replica of the Starfleet warship USS Defiant, which they also named Defiant. This powerful little ship was successful in defending the newly-captured station at the Battle of Terok Nor. (DS9: "Shattered Mirror")
The rebels' greatest victory came in 2375, when the Defiant, thanks to sabotage by the "normal" version of Rom, managed to capture Regent Worf, the leader of the Alliance. When last seen, the rebels' march towards victory appeared to be well under way. (DS9: "The Emperor's New Cloak")
After the defeat of the Regent, the Rebellion claimed a significant number of victories. These, however were not without cost. Several key members of the rebellion were killed and New leadership arose.
BY 2406, Rodrigo Doentiz and Captain Ahmed Ibn Salid had risen through the ranks of the rebellion. Eventually Doentiz would become regent and form the Imperial Union of Planets while salid would become captain of the ISS Rosenante. Other Members of the Rebellion included Saleke, T'Vhor and Devan Sash