The 43 Group was an English anti-fascist group set up by Jewish ex-servicemen after World War II. They did this when, upon returning to London, they encountered British fascist organisations such as Jeffrey Hamm's British League of Ex-Servicemen and later Oswald Mosley's reformed fascist party, the Union Movement. The activities of these fascist groups included antisemitic speeches in public places, and from the rank-and-file fascists, violent attacks on London Jews and Jewish property. Group members broke up far-right meetings, infiltrated fascist groups, and attacked the fascists in street fighting. https://en.m.wikipedia.org/wiki/43_Group http://stevesilver.org.uk/from-anti-fascist-war-to-cold-war/ The BBC are producing a 6 part drama based on the 43 Group after spending 3 years interviewing its remaining members.