what and who is antifa?
<answer> Antifa is an autonomous, self-styled militant movement. It has been around a long time and didn't start in the United States, but in Europe. <context> Antifa (Anti-Fascists) is an autonomous, self-styled militant movement. It has been around a long time and didn't start in the United States, but in Europe. In the United States, Antifa believes in direct opposition to the KKK, Neo Nazis and White Nationalist i.e. the Alt Right.