Vladimir Putin’s 57-missile onslaught plus a drone attack hammered critical infrastructure in Kyiv and the western Ukrainian region of Lviv.
But one of the Russian cruise missiles stayed over Nato territory in Poland for 39 seconds, triggering a major alert and fears of an escalation.
Allied war planes were scrambled to counter the dangerous incursion near the town of Oserdów.
Meanwhile, British Storm Shadow missiles were said to have blasted two more Russian landing ships with deadly strikes in the Black Sea naval port Sevastopol.
The Yamal and the Azov, each worth £170million, were knocked out in the latest blow to Putin’s naval power base
Another Storm Shadow cruise missile had earlier devastated Russia’s main communications centre of its vulnerable Black Sea fleet.
Defence Secretary Grant Shapps called the Black Sea blitz an “historic moment” yesterday.
Ukraine has switched its focus to the occupied Crimean peninsula after suffering setbacks in eastern Donbas and Luhansk.
Mr Shapps suggested it could turn the war back in favour of Ukraine President Zelensky.
He said: “It means Putin can no longer exercise safely in the Black Sea.”