<P> Rationing was introduced temporarily by the British government several times during the 20th century, during and immediately after a war . </P> <P> At the start of the Second World War in 1939, the United Kingdom was importing 20,000,000 long tons of food per year, including about 70% of its cheese and sugar, nearly 80% of fruits and about 70% of cereals and fats . The UK also imported more than half of its meat, and relied on imported feed to support its domestic meat production . The civilian population of the country was about 50 million . It was one of the principal strategies of the Germans in the Battle of the Atlantic to attack shipping bound for Britain, restricting British industry and potentially starving the nation into submission . </P> <P> To deal with sometimes extreme shortages, the Ministry of Food instituted a system of rationing . To buy most rationed items, each person had to register at chosen shops, and was provided with a ration book containing coupons . The shopkeeper was provided with enough food for registered customers . Purchasers had to take ration books with them when shopping, so that the relevant coupon or coupons could be cancelled . </P>

When did rationing stop after the second world war