Otto Strasser
The Black Front, which never had more than a couple of thousand members, was unable to oppose the NSDAP effectively, and Hitler’s rise to power proved to be the final straw. (The socialist element which remained in the NSDAP was eradicated in 1934 during the Night of the Long Knives in which Gregor Strasser, Otto's older brother, was killed. Strasser had previously broken with his brother over Otto's proclivity to act on his own.) Otto Strasser spent the years of the Third Reich in exile, first in Czechoslovakia and later in Canada.