The Antifa (English: /ænˈtiːfə/ or /ˈæntiˌfɑː/) movement is a conglomeration of autonomous, self-styled anti-fascist groups in the United States. The principal feature of antifa groups is their opposition to fascism through the use of direct action. They engage in militant protest tactics, which has included property damage and physical violence. They tend to be anti-capitalist and they are predominantly far-left and militant left, which includes anarchists, communists and socialists. Their stated focus is on fighting far-right and white supremacist ideologies directly, rather than politically.
The movement draws in part from a tradition of anti-fascism in the United States which stretches back a century, tracing its roots to the 1920s and 1930s, when militant leftists were involved in battles against American pro-Nazi organizations such as the Friends of New Germany. Although there is no organizational connection, the lineage of antifa in America can be traced to Weimar Germany, where the first group described as "antifa" was Antifaschistische Aktion, formed in 1932 with the involvement of the Communist Party of Germany.