The Churchill War Rooms are a historic underground complex in London that served as the nerve center for British military operations during World War II. This secret facility housed Winston Churchill, the British Prime Minister, and his key advisors as they strategized and coordinated efforts against the Axis powers. Today, the War Rooms are part of the Imperial War Museum and are open to the public as a museum. Visitors can explore the preserved rooms, including the Cabinet War Room and the Map Room, which provide insight into the decision-making processes that shaped the course of the war.