Eastern front of the Russo-Ukrainian war (2022–present)
Ukraine's easternmost regions, Donetsk, Luhansk, and Kharkiv, have been the site of an ongoing theatre of operation since the start of the Russo-Ukrainian war in February 2022. The battle of Donbas was a major offensive in the eastern theatre that took place in mid-2022.
Source: Wikipedia — Eastern front of the Russo-Ukrainian war (2022–present) (CC BY-SA 4.0)