1969: 'I was petrified but loved my wartime family'
In the first four days of September 1939, almost three million people - mostly children - were moved to safety from Britain's towns and cities to the countryside.
Clutching their gas-masks and a few personal possessions, entire schools of children were brought by train to be taken in by host families.
One of these children was Joan Lloyd-Evans, who was aged just four and "petrified" when she was moved from Liverpool to rural Wales.
Speaking on a 大象传媒 documentary to mark the 30th anniversary of the outbreak of World War Two, she looked back fondly at the culture shock that she encountered with her host family.
"I think they gave me some of the best years of my life actually - they were very good to me," she said.