Southern front of the Russo-Ukrainian war (2022–present)

On 24 February 2022, the Russian military invaded Kherson Oblast in southern Ukraine from Russian-occupied Crimea, quickly entering Mykolaiv Oblast and Zaporizhzhia Oblast amid battles with the Armed Forces of Ukraine. Elements from the southern Russian offensive joined forces with elements advancing from the Donbas to jointly surround and bombard the city of Mariupol in Donetsk Oblast, which fell after months of siege.

Source: Wikipedia — Southern front of the Russo-Ukrainian war (2022–present) (CC BY-SA 4.0)