Cabinet Office and Security Minister told households to keep three days of food, water and supplies because of weather, cyber attacks and supply disruptions: 3 litres water per person per day, non-perishable food for 3 days, torch, radio, cash, power bank, first-aid; sign up to Priority Services Register It joins a European pattern of household preparedness campaigns (Netherlands booklets to 8.5 million homes, Sweden's If Crisis or War Comes, Czech and Latvian 72 Hours guides, Poland's handbook to all households, Finland, Ireland, Estonia, Germany, France, Denmark, and an EU 72-hour standard), as summarized in a widely shared roundup. Official source: the UK Be Ready campaign site.