The British union of fascists reached their heyday in 1939 but then where banned and put in concentration camps upon the outbreak of world war two. Their leader was Sir. Oswald Mosley and their most famous event was the battle of cable street in which they faced off against British communists. Thats a short, im sure the link above is better. Concentration camps:confused: I thought only the main ones were arrested and were sent to a prison on the isle of man.