On February 12, the spokesman of the Russian Ministry of Defense Konashenkov reported that the Russian army attacked the Ukrainian military personnel and weapons and equipment in Kupiyansk, Zinchman, Donetsk and other directions. The Russian Air Force used high-precision weapons in the Kharkov region to attack the workshops that assembled tanks and armored vehicles for the Ukrainian army.

    On the same day, the General Staff of the Ukrainian Armed Forces said that the Ukrainian army had attacked Russian military personnel, weapons and equipment, ammunition depots and other targets. The General Staff of the Ukrainian Armed Forces also said that the Russian army concentrated its forces to launch offensive operations in Bakhmut, Avjevka and other places, and the Russian army also used warplanes to attack Ukrainian positions.