A group known as the African Blood Brotherhood, a socialist group with a large number of Caribbean "émigrés" in its leadership, organized around 1920 to demand the same sort of self-determination for black Americans that the Wilson administration was promising to Eastern European peoples at the Versailles conference in the aftermath of World War I. The leaders of the Brotherhood, many of whom joined the Communist Party in the years to come, were also inspired by the anti-imperialist program of the new Soviet Union.