The Antifascist United Front (FUA) - [Portuguese: Frente Única Antifascista] was a political organization founded on June 25, 1933 in the city of São Paulo to oppose fascism, represented in Brazil by the Brazilian Integralist Action (AIB). FUA was created on the initiative of Communist League (LC), Brazilian Socialist Party (PSB), Italian anti-Fascist immigrants and other leftist minority organizations. Two important segments of São Paulo's left at the time, the anarchists and militants of the Communist Party of Brazil (PCB), did not formally participate in the FUA, but they maintained contacts and articulated themselves with the Antifascist front on some occasions.