Antifa (United States) – Wikipedia

The Antifa (/ æ n ˈ t iː f ə, ˈ æ n t i ˌ f ɑː /) movement is a conglomeration of left-wing autonomous, militant anti-fascist groups 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 …

: https://en.wikipedia.org/wiki/Antifa_(United_States)