During World War I, he served in The Royal Army Medical Corps as a Stretcher Bearer and received the Military Medal.
[3] During World War II Smith taught history at Huntingdon Grammar School.
[8] Unable to gain support in Common Wealth for his ideas, he left in 1948.
Smith began working with a range of anti-communists, including Jack Tanner of the Amalgamated Engineering Union, the Duchess of Atholl (founder of the British League for European Freedom) and Conservative Party MP Malcolm Douglas-Hamilton, founding Common Cause in 1951, which aimed to combat communism in the trade unions.
[9] He soon became its general secretary, but the group dissolved itself into Industrial Research and Information Services in 1956.