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. (DS9 reference: Star Trek: Deep Space Nine Technical Manual)

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. (Last Unicorn RPG module: Ship Recognition Manual, Volume 1: The Ships of Starfleet)

Early conflictEdit

First contact between the Federation and the Cardassian Union occurred in the 2320s, during the presidency of Thelianaresth th'Vorothishria. (TTN novel: Taking Wing)

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. (ST comic: "Enter the Wolves")

Also a factor in the distrust was the Cardassians' controversial presence on, and eventual formal occupation of the planet Bajor. (DS9 - Terok Nor novel: Day of the Vipers)

One major engagement of the war 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. (TNG episode: "The Wounded"; DS9 episode: "Emissary"; ST novella: The Slow Knife)

The Cardassian councilor Erud was a proponent of a peaceful resolution to the frontier wars. (DS9 novel: A Stitch in Time)

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

Alternate realitiesEdit

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. (SCE eBook: Lost Time)

List of ConflictsEdit

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