Amongst White Army members, anti-Semitism was widespread.Western sponsors expressed dismay at this, especially as the Bolsheviks had prohibited anti-Semitism and appeared more progressive. Winston Churchill personally warned General Denikin, whose forces effected pogroms against the Jews, thatmy task in winning support in Parliament for the Russian Nationalist cause will be infinitely harder if well-authenticated complaints continue to be received from Jews in the zone of the Volunteer Armies.