The Brigate Osoppo-Friuli or Osoppo-Friuli Brigades were autonomous partisan formations founded in the headquarter of the Archbishop Seminary of Udine on 24 December 1943 by partisan volunteers of mixed ideologies, already active in Carnia and Friuli before the Badoglio Proclamation of 8 September. The partisans in this brigade adhered to various (and often conflicting) ideologies, including both secularism and Catholicism and socialism and liberalism.