Britain sets a war-readiness deadline as allies link hybrid attacks across Europe

Fact-check index: 76/100 — Most individual claims are accurately sourced to the cited outlets, but several connective and framing claims (same-week timing, the drone attack coinciding with the EU Parliament call, and the overarching 'one Russian campaign' thesis) go beyond what the cited headlines establish.

• UK defence secretary set a ~1,000-day deadline for Britain to be able to fight and win a war — Matches Firstpost ('Ready to fight, win a war': UK defence secretary warns Britain must prepare) and HuffPost UK ('UK Must Be Ready For War In 1,000 Days').
• UK government urged households to stockpile 72-hour emergency supplies — Matches 조선일보 headline directly ('UK Government Urges Households to Stockpile 72-Hour Emergency Supplies').
• Finland arrived in London to train Whitehall on countering Russian hybrid warfare — Telegraph headline confirms 'Finland teaching Britain how to thwart Russia's hybrid warfare' but does not specify this happened via Finnish officials 'arriving in London' to train 'Whitehall'; that specific framing is an inference beyond the headline.
• These three UK developments occurred 'this week' together — No dates are given in the source headlines, so the claim that all three events are contemporaneous within the same week cannot be verified from the material provided.
• Zelenskyy said Russia's strategy is to exhaust European publics' willingness to keep paying for Ukraine's defence, aiming to choke off European aid — Consistent with RBC-Ukraine headline 'Zelenskyy outlines Russia's plan to stop European aid to Ukraine', though the specific framing about targeting 'public willingness to pay' adds interpretive detail not confirmable from the headline alone.
• Italian prosecutors opened a criminal investigation into suspected Russian involvement in the Milan riots — Matches EU Today headline 'Italy Investigates Possible Russian Role in Milan Riots'.
• Meloni's government folds the unrest into its broader reading of a hybrid warfare threat — Matches EU Today headline subtitle 'as Meloni Confronts Hybrid Warfare Threat'.
• In the Black Sea, sailors believed a rescue boat was approaching but it was an explosive drone disguised as one, which sank their ship — Closely matches CBC headline 'Black Sea sailors thought a rescue boat was racing toward them. Instead, it was a drone that sank their ship'.
• The drone attack came as the European Parliament called for an EU naval operation — Both events are reported by EU Today/CBC but the headlines do not establish the attack happened concurrently with or 'as' the Parliament's call; this temporal/causal linkage is the article's own construction.
• European Parliament called for an EU naval operation citing a deepening Black Sea security crisis — Matches EU Today headline 'Black Sea Security Crisis Deepens as European Parliament Calls for EU Naval Operation'.
• These five stories together suggest one coordinated Russian campaign aimed at European resolve — Explicitly flagged by the article itself as a hypothesis with no cited source establishing a single coordinated plan; appropriately caveated rather than asserted as fact.
• Reference to 'The Readiness Gap' finding Britain and allies thin on stockpiles and public communication — This refers to the outlet's own earlier article, which is not part of the supplied source material and cannot be checked against it.