Sir Winston Churchill was a British politician and statesman who served as Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. He led Britain to victory in World War II and helped rebuild the nation. Churchill was also an author and historian who received the Nobel Prize in Literature in 1953 for his mastery of historical writing and oratory. He had a long career as a soldier, war correspondent, and politician prior to becoming Prime Minister during Britain's darkest hour in World War II.