The Eleventh Order was a division of the Cardassian military that was, according to Klingon General Martok, a reserve unit that was composed of "old men and walking wounded." They were stationed on Septimus III during the Dominion War.
Damar was fearful of an impending Klingon attack and asked Weyoun to send reinforcements which Weyoun promised to do but had no interest in protecting these Cardassian troops as by this time the Cardassians were being viewed as disposable as Jem'Hadar.
In 2375, all 500,000 members of the Order were sacrificed by the Dominion when Septimus III was attacked by and conquered by the Klingons. (DS9: "Strange Bedfellows") When Septimus III was raided, word reached Damar quickly and Damar then confronted Weyoun as to why there was no action taken to protect the planet, Weyoun brushed off Damar provoking him to found the Cardassian Liberation Front. (DS9: "The Changing Face of Evil")
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