At the high tide of Britain's twentieth century power, Sir Archibald Clark Kerr reached the pinnacle of his remarkable and controversial career. He served in vital diplomatic posts and was a major figure in determining and executing British foreign policy. An Australian-born Scot, he joined the Foreign service in 1906. His promising early career suffered a serious setback in 1924, however, when as deputy to Lord Allenby in Cairo he challenged the...