 With the advent of communism after the October Revolution of 1917, and during the Russian Civil War from 1918 to 1920, most of the Scoutmasters and many Scouts fought in the ranks of the White Army and interventionists against the Red Army.In Soviet Russia the Scouting system started to be replaced by ideologically-altered Scoutlike organizations, such as (, or "young communists"; pronounced as "yuk"), that were created since 1918.There was a purge of the Scout leaders, many of whom perished under the Bolsheviks.