The emergence of the Independent Socialist party (USPD) in Germany during World War I had momentous and long-reaching consequences. Organized as a group of dissenters within the established German Social Democratic party (SPD), independent socialism grew into a movement that split Germany's working class into two, then three, warring factions. The result was a struggle for supremacy among socialist party factions to which subsequent writers have attributed the “failed” revolution of November 1918, a Weimar Constitution that alienated rather than satisfied German workers, and ultimately the inability of German Socialists to present a unified front against the ultimate threat to German democracy: Adolf Hitler and the Third Reich.