The Civil Defence Reserve were a number of regional and mobile columns that were created to be deployed quickly where most needed. A number of Regional Columns throughout the country were set up and Kent and West Sussex also had Mobile Reserve Columns (Kent's being the prototype column that others were later based on). By 1943, 14 Regional Columns had been created.
Each column had approximately 200 personnel drawn from various Civil Defence disciplines (first aid, ambulance, rescue and decontamination). They were equipped with all the necessary tools and vehicles as well as motorcycle messengers.
In 1945, an Overseas Column worked in Antwerp.
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