The Cabinet War Rooms provided the secret underground headquarters for the core of the British government throughout the Second World War.

The fear that London would be the target of aerial bombardment had troubled the government since the First World War and in 1938 the basement of a Whitehall building was chosen as the site for the Cabinet War Rooms. From 1940 – 1945 hundreds of men and women would spend thousands of vital hours here and it soon became the inner sanctum of the British government.

Following the surrender of the Japanese Forces, the doors to the Cabinet War Rooms were locked on 16 August 1945 and the complex was left undisturbed until Parliament ensured its preservation as a historic site in 1948. Knowledge of the site and access to it remained highly restricted until the late 1970s when the Imperial War Museum began the task of preserving the site and its contents, making them accessible to as wide an audience as possible. In 1984 the main war rooms opened to the public. In 2003 further restoration work opened the ‘Courtyard Rooms’, the rooms where staff would eat, sleep and work in safety.

In 2005 we added the only major museum in the world dedicated to Sir Winston Churchill. Its multimedia and uniquely engaging approach provides visitors with a comprehensive overview of Churchill’s life.

Second World War

80 years of the Cabinet War Rooms

Churchill War Rooms Interior Hall
©IWM

Uncover 80 years of secrets and stories. 

On 27 August 1939 the Cabinet War Rooms first became operational. 80 years on discover how the underground command centre was built under Westminster - and the crucial role it played during the Second World War.

Life underground

Four military officers sit at desks while working in an underground bunker in 1945. There are maps pinned to the walls behind them.
©IWM (HU 58517)
Second World War

How Sugar Cubes Reveal Churchill War Rooms Well Preserved Past

When IWM took over the Churchill War Rooms in the early 80s, three sugar cubes were discovered, hidden away in a desk drawer of the Map Room.

Room 60 in the Cabinet War Rooms. © IWM MH 531.
© IWM MH 531
Second World War

Women of the Cabinet War Rooms: Peggy Cochrane

A series of handwritten letters donated to IWM by the family of one of the women of the War Rooms shines a light on life, love, and historic events, like VE Day, that the women of the War Rooms were witness to.

Letters from Edith Florence Cochrane, known as 'Peggy', offer a fascinating insight into her work life and her experiences of the VE Day celebrations in Whitehall, encapsulating the joyous excitement and atmosphere of the momentous day. 

Joy Hunter, a typist in the Churchill War Rooms during the Second World War, sits behind a desk
IWM
Second World War

Joy Hunter on life as a typist at Churchill War Rooms

Joy Hunter was a typist in the Churchill War Rooms during the Second World War. She recalls what it was like to see Winston Churchill at work - and tells the story of one memorable evening with the film loving Prime Minister! 

Remington 'Noiseless' Typewriter.
IWM
Second World War

The Churchill War Rooms' Remington 'noiseless' Typewriter

The Remington ‘noiseless’ Typewriter at Churchill War Rooms helps tell the story of what it was like for a typist to help Britain and its most iconic Prime Minister triumph during the Second World War.

The Prime Minister Winston Churchill sits at his desk in the Map Room at the Cabinet War Rooms. Beside him , Captain Pym of the RNVR takes a telephone call.
© IWM(HU 44788)
Second World War

Churchill's top secret hotline to the President

Even before the United States joined the Second World War in December 1941, British Prime Minister Winston Churchill wanted to be in close contact with its President, Franklin D Roosevelt. In October 1940, a company in the US began a secret project that would enable secure phone conversations across the Atlantic Ocean. The cutting-edge technology came to be known as SIGSALY. 

Map Room
Second World War

The Map Room at the Cabinet War Rooms

The Map Room at the Cabinet War Rooms was staffed day and night throughout the Second World War. In this video, find out exactly went on in the top secret Map Room, who worked here, and why will some of these details will continue to remain a mystery to this day.

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