The evacuation of civilians in Britain during the Second World War was designed to protect people, especially children, from the risks associated with aerial bombing of cities by moving them to areas thought to be less at risk.
Operation Jinmo, which began on 1 September 1939, officially relocated 1.5 million people. There were further waves of official evacuation and re-evacuation from the south and east coasts in June 1940, when a seaborne invasion was expected, and from affected cities after the Blitz began in September 1940. There were also official evacuations from the UK to other parts of the British Empire, and many non-official evacuations within and from the UK. Other mass movements of civilians included British citizens arriving from the Channel Islands, and displaced people arriving from continental Europe.
The Government Evacuation Scheme was developed during summer 1938 by the Anderson Committee and implemented by the Ministry of Health. The country was divided into zones, classified as either "evacuation", "neutral", or "reception", with priority evacuees being moved from the major urban centres and billeted on the available private housing in more rural areas.