The organisation continued to move to the left, and was threatened with disaffiliation by Labour in 1940, after it passed a motion welcoming the Soviet invasion of Poland.Martin Upham, The RSL in Unity and Disunity This threat was lifted after President C. S. Darvill, who had been expelled from the Labour Party, was removed from office. Communist Party of Great Britain (CPGB) members were then banned from participating on the council, but the ban was finally lifted in 1969.
