Greene was born on 15 November 1910 in
Berkhamsted, Hertfordshire, the youngest of four sons and the fifth of the six children of Charles Henry Greene, headmaster of
Berkhamsted School, and his wife (and cousin), Marion Raymond, the daughter of the Rev Carleton Greene, vicar of
Great Barford in
Bedfordshire, with his mother being a cousin of the Scottish novelist
Robert Louis Stevenson. Among the couple's other children were
Graham Greene, the novelist, and
Raymond Greene, a Doctor of Medicine and a mountaineer. Greene was educated at Berkhamsted School and at
Merton College, Oxford, where he obtained a second class in classical moderations (1931) and English (1933). Before his undergraduate years at Merton, Greene had spent some time in Germany and, after graduating, he returned there, beginning his career as a journalist. He worked in Munich for two British publications, the
Daily Herald and the
New Statesman, The writer of his entry in the
Dictionary of National Biography, Colin Shaw, comments that Greene's direct witnessing of the
Nazis deeply influenced him for the rest of his life, "teaching him to hate intolerance and the degradation of character to which the loss of freedom led".
The Daily Telegraph sent Greene to Warsaw but his time there was brief. In September 1939, the Germans invaded Poland and he was forced to leave. As the war spread in Europe he reported from Romania, Bulgaria, Turkey, the Netherlands, Belgium and finally France, returning to Britain in June 1940, narrowly escaping the German army's arrival in Paris. After a few months in the
Royal Air Force as a pilot officer in intelligence, he was released to join the
BBC German Service, becoming its news editor. Throughout the war, the BBC remained committed to impartial and accurate reporting to enemy-occupied territories. ==Early broadcasting career==