Ukraine fired six British Storm Shadows and six US-made ATACMS ballistic missiles during its largest aerial bombardment of Russia in the war so far, Ukrainian and Russian officials have said.

Russia's military on Tuesday said it would retaliate against Ukraine after Kyiv attacked Russian regions by firing six U.S.-made ATACMS ballistic missiles, six UK-made Storm Shadow cruise missiles and launching one of the biggest drone attacks to date.

Ukraine has launched its largest attack on Russian military facilities, deploying British Storm Shadow missiles, US-made Atacms missiles and 146 drones to strike targets deep inside Russian territory.

Ukraine launches British Storm Shadows in ‘largest attack on Russian military facilities’ of war - Ukrainian forces hit deep inside Russian territory with British-made missiles as Moscow vows to retal

Ukrainian President Volodymyr Zelenskyy warned allies that the defense of his nation is a litmus test for broader Western resolve, after Russia fired at least 117 missiles and drones in an overnight attack on the country's energy infrastructure facilities.

Ukraine's military has targeted Russia with a series of missile and drone attacks, fired from U.S. and British technologies. After strikes up to 680 miles deep into Russian territory, including oil and chemical plants,

Ukrainian forces used missiles and drones on Tuesday to target sensitive military and energy sites across Russia.

Ukraine fired six US-made ATACMS ballistic missiles, six British Storm Shadow cruise missiles and at least 146 drones into Russia in a mass attack, says Moscow. It threatened retaliation against the air strikes.

Russia's military on Tuesday said it would retaliate against Ukraine after Kyiv attacked Russian regions by firing six U.S.-made ATACMS ballistic missiles, six UK-made Storm Shadow cruise missiles and launching one of the biggest drone attacks to date.

The barrage appeared to be one of the largest recent assaults in Ukraine’s campaign to damage Russia’s war machine on its home territory.