Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sir Alexander George Montagu Cadogan OM GCMG KCB (25 November 1884 9 July 1968) was a British civil servant. He was Permanent Under-Secretary for Foreign Affairs from 1938 to 1946. Cadogan was the eighth son and youngest child of George Cadogan, 5th Earl Cadogan, and his first wife Lady Beatrix Jane Craven, and was educated at Eton and Balliol College, Oxford. He served in the Diplomatic Service from 1908 to 1950 and was Permanent Under-Secretary at the Foreign Office from 1938 to 1946, representative to the Dumbarton Oaks Conference in 1944, Britain''s representative to the United Nations from 1946 to 1950. He was admitted to the Privy Council in 1946 and was later Chairman of Board of Governors of the BBC from 1952 to 1957. Cadogan replaced Robert Vansittart whose style he felt to be emotional and disordered, compared to Cadogan''s terse and efficient manner. There were no significant divergences in policy, although Vansittart''s detestation of the dictators was more publicly known.