UK, Japan, EU urge 72-hour household stockpiles; no stated threat

Britain and Japan have issued unprecedented public advisories urging households to stockpile water and food for at least 72 hours, with Japan's appeal dated November 2. The EU has reportedly made a similar request. No specific threat has been cited, and the advisories may reflect broader civil-defense preparedness efforts rather than an imminent crisis, but the coordinated timing across major allies is notable.

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