Russia and Ukraine exchanged large drone attacks on Sunday night into Monday, with alleged Ukrainian UAVs forcing flight restrictions at three Russian airports.

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

A fire erupted in the city of Kazan in Russia's Tatarstan republic overnight on Jan. 20 amid a Ukrainian drone attack on the city, Russian Telegram channels reported.

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.

Ukrainian President Volodymyr Zelenskyy warned allies that the defense of his nation is a litmus test for broader Western resolve.

Russian strikes against Ukraine killed two civilians and injured five over the past day, regional authorities reported on Jan. 20. Russian forces launched 141 drones at Ukraine overnight from the Russian cities of Bryansk,

Russia dispatched over 60 drones for attacks on Ukraine, of which 43 were shot down and 15 were electronically neutralised. The heaviest fighting is taking place near Pokrovsk. Russian forces conducted night-time attacks on Ukraine,

Russia launched over 60 drones for attacks on Ukraine, of which 43 were shot down and 15 were electronically neutralized. The most intense fighting is taking place near Pokrovsk. Russian forces conducted night attacks on Ukraine,