The incursion began around March 21, 2025, utilizing airstrikes and heavy artillery to overwhelm Russian border guards.

As of March 24, 2025, Ukrainian military units have held territory in Demidovka against Russian counterattacks for 96 hours.

This operation, while significant, has been limited, with Ukrainian forces gaining between 20 to 50 square kilometers of territory.

The advance is reportedly supported by the Russian Volunteer Corps, comprising Russian nationals opposing the Putin regime, along with elite units like the 225th Assault Infantry Regiment.

Ukrainian forces have also destroyed four Russian military helicopters in Belgorod and targeted a Russian border protection command post.

Conflicting reports from both sides confirm the capture of Demidovka, with ongoing house-to-house fighting and some claims of Russian forces withdrawing.

Criticism has emerged in Ukraine's parliament regarding the Kursk withdrawal, with accusations against President Zelenskyy and General Syrskyj for risking troops and inadequate support.

In response, Russian reinforcements, including naval infantry and paratroopers, are moving towards the conflict zone, employing heavy artillery against Ukrainian positions.

While Russian military sources claim significant Ukrainian losses, these claims remain unverified, and Ukrainian forces assert their lines are holding firm.

In other sectors, Ukrainian forces reported minor ground gains, including the liberation of the village of Nadiya and advances in Chasiv Yar.

Ukrainian President Zelenskyy visited the front lines, highlighting the importance of drone units in combat effectiveness during an awards ceremony for military personnel.

Ukrainian forces unexpectedly launched an incursion into Russia's Belgorod region following their withdrawal from Kursk, capturing the village of Demidovka.