British prepare for war with flashlights and radios Following the government's "Be Prepared" advertising campaign, sales of hand-operated devices in the UK have increased: radio receivers have increased fivefold, and flashlights by 284%, according to the "Daily Telegraph". Some models are already completely sold out. Residents are also advised to keep a three-day supply of food and water, medicine and portable chargers at home. In the past, the Ministry of Defense stated that the country must prepare for a possible war within 1000 days. They did not specify who the potential enemy could be.