The occupation of Mon Cala began when the planet Mon Cala, the shared homeworld of the Mon Calamari and Quarren species, was brutally subjugated by the Galactic Empire as punishment for its rebel sympathies. However, the peaceful Mon Calamari, having learned harsh and costly lessons during the Clone Wars, were ready. The Imperial occupation heralded a mass exodus, triggering a launch of spaceworthy structures that the Empire mistook for city buildings, which disappeared into hyperspace. In retaliation, the Mon Calamari became one of the key species of the Alliance to Restore the Republic, supplying capital ships to the Alliance Fleet, despite its limited effectiveness against the occupation, which were converted for war by rebels in deep-space facilities located in the remote Telaris syste