Winston Churchill was a British politician and prime minister during World War II. He was prime minister from 1940 to 1945 and again from 1951 to 1955, leading Britain through World War II and the early years of the Cold War. Churchill was born in 1874 and had a long political career, serving as an army officer, journalist, and holding various government positions before becoming prime minister during Britain's darkest hour in WWII. He helped rally British morale during the war through his inspiring speeches and leadership.