The stakes have never been higher in the Ukraine-Russia war. In the week that saw the conflict pass its 1000th day, Western powers substantially boosted Ukraine's military arsenal - and the Kremlin made its loudest threats yet of a nuclear strike.

This past week has seen the most significant escalation in hostilities that Ukraine has witnessed since Russia's full-scale invasion and marks a new chapter in the nearly three-year war — one tinged with uncertainty and fear.

It began with a peace move nobody wanted and ended with an experimental missile strike so rare in war Moscow gave a 30-minute heads-up to Washington.