The Cardassian Liberation Front, also known as the Cardassian Rebellion, was a popular uprising led by Legate Damar against the occupation of the Cardassian Union by the Dominion in 2375.
Although the revolt had little military impact and was quickly crushed by the Jem'Hadar, the uprising nonetheless had a great effect on the outcome of the Dominion War by forcing the Dominion to divert resources to quelling the rebellion, just as they were poised to launch a massive assault against the Federation, Klingons, and Romulans. Ultimately, the rebellion allowed the allies to win the war at the Battle of Cardassia, although their actions would have devastating consequences for Cardassia Prime.
By 2375, the Dominion's war effort against the Federation Alliance was settling into a bloody stalemate, with the tide steadily turning in the latter's favor. Damar, as leader of Cardassia, was becoming ever more frustrated with his Dominion allies, who had promised to return Cardassia to greatness but instead seemed intent on merely using Cardassia's resources to wage their war against the Federation and its allies. Initially, Damar tried to avoid his self-doubt by drinking excessive amounts of kanar and shirking many of his duties.