In England, WW1 conscription ended in 1919. For twenty years, there after that, there was no conscription in Britain. In 1939, conscription for World War II began, and did not end until the mid-1960's.
Conscription deeply divided Australia in the early 1900's. Many families (and citizens for that matter) did not agree with boyhood conscription, so an opposition was formed. Conscription is no longer practiced in Australia.