In the United Kingdom, military conscription has existed for two periods in modern times. The first was from 1916 to 1920, and the second from 1939 to 1960. The last conscription term ended in 1963 although many soldiers chose to continue in the service beyond 1963.
It was legally designated as "Military Service" from 1916 to 1920, and as "National Service" from 1939 to 1960. However, between 1939 and 1948, it was often referred to as "War Service" in documents relating to National Insurance and pension provision.