How Ukraine’s Operation Vivaldi pushed back Russian forces in Donbas

In May 2026, Ukraine’s 3rd Army Corps launched a secret counteroffensive now known as Operation Vivaldi, aiming to strengthen Ukraine’s defensive positions in the Lyman and Sviatohirsk sectors and disrupt Russia’s plans to encircle Ukraine’s key strongholds – the cities of Sloviansk and Kramatorsk.

Source: The Kyiv Independent