As long as there has been fascism, there has been anti-fascism — also known as “antifa.” Born out of resistance to Mussolini and Hitler in Europe during the 1920s and ’30s, the antifa movement has suddenly burst into the headlines amidst opposition to the Trump administration and the alt-right. They could be seen in news reports, often clad all in black with balaclavas covering their faces, demonstrating at the presidential inauguration, and on California college campuses protesting far-right speakers, and most recently, on the streets of Charlottesville, VA, protecting, among others, a group of ministers including Cornel West from neo-Nazi violence. (West would later tell reporters, "The anti-fascists saved our lives.")

Mark Bray is a historian of human rights, terrorism, and political radicalism in Modern Europe who was one of the organizers of Occupy Wall Street. He is the author of Translating Anarchy: The Anarchism of Occupy Wall Street, and the co-editor of Anarchist Education and the Modern School: A Francisco Ferrer Reader. His work has appeared in Foreign Policy, Critical Quarterly, ROAR Magazine, and numerous edited volumes. He is currently a lecturer at Dartmouth College.