Memory Delta Wiki

The USS Zeus attacking a Cardassian Galor class

The Federation-Cardassian War was a conflict between the United Federation of Planets and the Cardassian Union. The period from 2355 until 2359 was considered to be the height of the conflict. Although fighting ended in 2366 when a ceasefire was agreed between the two powers, the state of war wasn't formally ended until 2370 with the signing of the Federation-Cardassian Treaty of 2370.

Early conflict[]

First contact between the Federation and the Cardassian Union occurred in the 2320s, during the presidency of Thelianaresth th'Vorothishria.

Early relations of the two governments were tense due in large part to Cardassian secrecy, and the Federation's efforts to show trust were undermined by incidents such as the sabotage of Ambassador Sarek's summit meeting with the Legarans at Vulcan in 2327. Also a factor in the distrust was the Cardassians' controversial presence on, and eventual formal occupation of the planet Bajor.

One major engagement of the was was the Setlik III Massacre, in which the Cardassians launched a ground invasion of a Federation-controlled system (initially believing a weapons depot to be located there), with the Cardassians ultimately annexing the Setlik system and slaughtering many Federation civilians there.

The Cardassian councilor Erud was a proponent of a peaceful resolution to the frontier wars.

There have been few details established about this war to date, including its causes, duration, and intensity.


The Maquis were created by disgruntled Starfleet officers, crewmen and Federation civilians who felt "sold out" by the Federation with the treaty and the creation of the DMZ.

Despite the truce, tensions still remained high between the two powers after the signing of the treaty. Three years later the Federation and Cardassians would be at war again, taking different sides in the Dominion War.

Alternate realities[]

In an alternate universe accessed by an interdimensional Androssi device, the Federation-Cardassian War lasted longer than in the primary universe. Starfleet Captain Jean-Luc Picard was executed by Gul Elim Garak at some point during the war.

List of Conflicts[]