sentences:  He then served in the armed forces between 1940 and 1945, being mentioned twice in despatches, and earning an MBE.He was elected as Member of Parliament for Cambridge in the Labour landslide at the 1945 general election, winning by a majority of only 682 votes over the incumbent Conservative MP Richard Tufnell.At the 1950 general election, he lost by 5,355 votes to the Conservative Hamilton Kerr.