Clan: Unstoppable Force [UF]
Fundador: [UF]Stumbler from Afghanistan
Establecido: August 9, 2010, 6:01 pm

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Clan: Ultimate Fighting Champions [UFC]
Fundador: [UFC]Forest from United Kingdom of Great Britain and Northern Ireland
Establecido: April 24, 2008, 8:43 pm

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Clan: UFC League [UFC_]
Fundador: [UFC_]_XeretA_ from Canada
Establecido: November 20, 2011, 5:49 pm

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Clan: Ultimate Factor Killer [UfK]
Fundador: [UfK]Flying__ from Spain
Establecido: June 12, 2017, 11:46 pm

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Clan: UNFORGETTABLE KNIGHTS [UFKNI]
Fundador: [UFKNI]CANNON_4 from India
Establecido: May 7, 2020, 9:38 am

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Clan: Under Fire klan [UFk_]
Fundador: [UFk_]Pitaime from France
Establecido: July 10, 2007, 1:01 pm

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