London's Strategic Context and Preparations for War

Civil Defence: Evacuation

• Fearing a devastating aerial "knock-out blow" and poison gas, the government enacted Operation Pied Piper. Beginning on 1 September 1939, this scheme moved 1.5 million vulnerable citizens — primarily schoolchildren and mothers with young children — away from urban targets to rural reception areas.
• Each evacuee carried a gas mask and wore a tag for identification before being assigned to a host family through a process called billeting.
• However, during the initial Phoney War when no bombing occurred, over 60% of evacuees returned to London by January 1940, forcing the government to launch further evacuation waves later in the war.

Civil Defence: Domestic Shelters

• To protect the population that remained in the city, the government initially focused on domestic protection for those with private space.
• The Anderson Shelter was distributed to families with gardens. These were constructed from 14 corrugated steel panels and were designed to be buried one metre deep.
• To provide protection against blasts and shrapnel, they were covered in 15 to 18 inches of soil.
• They were provided free to families earning under £250 a year, ensuring widespread civilian protection for the 27% of Londoners who used them.

Civil Defence: Communal and Public Shelters

• Not all Londoners could use domestic shelters, particularly those living in high-density tenements in the East End. This necessitated the provision of public shelters (also known as communal shelters).
• Government data shows that approximately 9% of Londoners used these public facilities, though many initially preferred to stay in their own homes.
• The government was initially reluctant to use the London Underground (the Tube) as a shelter, fearing a "deep-shelter mentality" where people would refuse to leave the safety of the tunnels.
• However, public pressure and the intensity of the Blitz forced a change in policy. By September 1940, thousands of Londoners began sheltering in Tube stations. Despite its fame in "Blitz Spirit" stories, only about 4% of Londoners actually used the Tube for shelter.
• Air Raid Precautions (ARP) wardens enforced a strict blackout to prevent city lights from guiding enemy bombers at night, requiring all windows to be covered with heavy curtains or black paint.

Civil Defence: Preparing for Chemical Warfare

• Driven by the psychological trauma of WWI, authorities estimated that up to 25% of dropped bombs might contain poison gas.
• To combat this, they distributed between 38 and 50 million gas masks by September 1939. These included the General Civilian Respirator for adults and brightly coloured "Mickey Mouse" masks made of red and blue rubber for young children.
• Carrying a mask was compulsory, and authorities set up specialised Gas Cleansing Centres (such as in Wandsworth) featuring stripping sheds and showers for decontaminating citizens.
• ARP wardens were equipped with wooden gas rattles to warn the public of any chemical attacks, and used handbells to signal the "all-clear."

Worked Example: Describing Civil Defence Features

Describe two features of the preparations made for civil defence in London. [4 marks]

Feature 1: The provision of domestic shelters for householders. Detail: The government distributed Anderson shelters, made of corrugated steel, which were buried in gardens and covered with soil to protect families from bomb blasts.

Feature 2: The use of the London Underground as a public shelter. Detail: Although initially restricted, the government eventually allowed civilians to use Tube stations as deep-level shelters during the Blitz, used by about 4% of the population.