The antifa () movement is composed of left-wing, autonomous, militant anti-fascist groups and individuals in the United States. The principal feature of antifa groups is their use of direct action, with conflicts occurring both online and in real life. They engage in varied protest tactics, which include digital activism, property damage, physical violence, and harassment against those whom they identify as fascist, racist, or on the far-right.
Activists involved in the movement tend to be anti-capitalists and subscribe to a range of ideologies, typically on the left. They include anarchists, socialists and communists along with some liberals and social democrats. Their stated focus is on fighting far-right and white supremacist ideologies directly, rather than through electoral means.