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de About.com Education

Sir Winston Churchill's Life, Career, and Leadership

”I am an optimist. It does not seem too much use being anything else.” - Winston Churchill

MARTO-Carlomagno-Colección Héroes y Civilizaciones http://marto.es/es/productos-marto/coleccion-heroes-y-civilizaciones/carlomagno2012-07-20-12-22-06-detail

MARTO-Carlomagno-Colección Héroes y Civilizaciones http://marto.es/es/productos-marto/coleccion-heroes-y-civilizaciones/carlomagno2012-07-20-12-22-06-detail

de WW2DB

[Photo] Member of British 3 Commando Brigade in training at Achnacarry, Scotland, United Kingdom, circa 1942-1945; note second pattern F-S dagger between teeth

Member of British 3 Commando Brigade in training at Achnacarry, Scotland, United Kingdom, circa 1942-1945; note second pattern F-S dagger between teeth.

Commander Alastair Denniston, a British cryptologist who worked during WW1 in the well-known “Room 40” dealing with breaking German military ciphers. After the war, he re-organised the headquarters of the British radio intelligence service GC'&'CS. Just before WW2 Denniston led the British delegation sent to Poland to meet Polish cipher experts, who disclosed the secret of breaking Enigma. After the outbreak of WW2, Denniston and his team moved to Bletchley Park.