Ukrainian President Volodymyr Zelenskyy said Kyiv has formally sent Washington proposals aimed at ending the war with Russia, according to Al Jazeera. The announcement puts Kyiv on record as the party that has moved first on paper, ahead of any Kremlin response.

The diplomatic move lands alongside a separate warning: a think-tank cited by The Independent says Vladimir Putin is preparing to use the winter months to try to "break" Ukraine. That puts a battlefield-and-infrastructure clock running underneath the negotiating clock in Washington.

HYPOTHESIS: Moscow may be timing winter pressure to strengthen its hand before any US-brokered deal hardens into terms. Supporting this: the two developments are surfacing in the same news cycle, with Kyiv's proposals reaching Washington just as the winter warning emerges. Against this: neither source confirms the Kremlin is coordinating military pressure with the diplomatic track, and Putin's winter calculus predates this specific proposal.

Whatever terms Washington ultimately shapes or endorses will function as a template for Europe's postwar security order — where new lines are drawn, what guarantees Kyiv gets, and how far Russia's leverage extends into any settlement.

What to watch: whether the Trump administration responds substantively to Kyiv's proposals or lets them sit, and whether Ukraine's grid and defenses hold through the winter months at a pace that either validates or undercuts Moscow's bet.