Britain in World War II | When the World Goes to War, Part 4

WHY WE FIGHT — EPISODE 4: BRITAIN Britain stands at the center of a world at war. As the conflict spreads across Europe, Britain faces the growing threat of Nazi Germany and finds itself fighting for its survival, its people, and the future of freedom. Why We Fight was the historic World War II documentary film series created to explain the causes of the war, the forces involved, and why the United States and its allies were fighting.