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.

Ukrainian forces carried out a massive drone barrage targeting military assets in Russia. As part of its larger campaign to thwart Moscow’s advances, Kyiv launched more than 100 unmanned aerial vehicles (UAVs) along with American-made Storm Shadow missiles and Army Tactical Missile Systems (ATACMS).

Russia launched a major ballistic and cruise missile attack on regions across Ukraine early Wednesday, targeting energy production and compelling authorities to shut down the power grid in some areas,