the party's paramilitary wing was the roter frontkämpferbund ("alliance of red front-fighters"), which was banned as extremist by the governing social democrats in 1929; in 1932 the kpd also founded antifaschistische aktion, commonly known as antifa, which it described as a "red united front under the leadership of the only anti-fascist party, the kpd," and which largely attacked the "social fascists" [social democrats]. banned in the weimar republic one day after adolf hitler emerged triumphant in the german elections in 1933, the kpd maintained an underground organization but suffered heavy losses.