The implication was that Britain would wage war as a sea power.
Britain and the Great War 1914-1918 by John Bourne (London, 1989)
Before the war the British government began preparing for air raids. By 1939 they had an air raid precautions system ready with barrage balloons and air raid sirens. Before the war began people bought Anderson shelters (although poor people could get them free). An Anderson shelter was made of sections of corrugated iron. You erected it in a hole at least 3 feet deep in your garden and used the earth from the hole to cover it. From the end of 1940 some people got Morrison shelters (again poor people could get them free). The Morrison shelter was a steel cage you erected indoors. In London some people sheltered in the underground.
History of the United Kingdom during the First World War ..
(In secret, Hitler and Stalin had signed an agreement dividing up Poland between the two powers.)On September 3, 1939, Britain declared war on Germany.
A quick reference tool and summary of Britain's World War II history.
As the prospect of war became increasingly likely, the government wanted to increase the amount of food grown within Britain. In order to grow more food, more help was needed on the farms and so the government started the Women's Land Army.
World War II: The Battle of Britain - The Atlantic
The memorial stands in Whitehall, about a hundred yards from the cenotaph. The 22ft-high bronze sculpture depicts the uniforms and working clothes worn by women during the war.
World War II: The Battle of Britain
Women played a vital role in Britain during the Second World War. They operated anti-aircraft guns and worked as ambulance drivers. Many joined the services as wrens (navy) or waafs (air force). Others worked in factories or on farms as part of the women's land army. There were also dustwomen. Many women were nurses and there was a women's auxiliary fire service. Women were also ARP wardens.