When an army recalls its special forces from leave with a deadline of under twelve hours, that is not a rota - it is a signal. The Ukrainian command urgently recalled members of the 4th Regiment of the Special Operations Forces and moved them towards Dobropillia, one of the most sensitive parts of the Donbas front right now.

The Telegram channel Militarist, citing sources in European intelligence services, claims the order was issued on 23 August and that soldiers on leave in Kyiv or in training in western Ukraine were given less than twelve hours to report to their unit. There is still no official confirmation from the Ukrainian General Staff that the entire regiment was recalled from leave, so that part remains a single-source finding - worth stating plainly, because in this war each side puts out the numbers that suit it.

Why the 4th Regiment specifically

The 4th Regiment is one of the newest units in Ukraine's Special Operations Forces, formed in 2024 for reconnaissance, special operations and rapid intervention in the hardest sectors of the front. It has already fought in the Sumy region and in Donbas, and its operators use FPV and other drones to strike enemy manpower, artillery, communications and logistics points.

This is not a unit sent to fill trenches. It is deployed where a breakthrough needs an immediate response, where a counterstrike is needed, or where a local enemy success has to be stopped before it becomes an operational problem. Its appearance at Dobropillia is precisely why military bloggers took notice - it tells you on its own what kind of battle Kyiv expects.

What is happening on the ground

The Institute for the Study of War recorded multiple Russian infiltration actions south and east of Dobropillia on 5 and 6 September. Geolocated footage shows Russian soldiers in Matiashevo and on the approaches to the town, while Russian sources claim their units are trying to push in from both the east and the southeast. Ukrainian forces are simultaneously counterattacking the groups that manage to slip behind the first line.

In late August Russian units also took Rubizhne, northeast of Dobropillia, bringing the fighting closer still to the town and to the road linking it with Kramatorsk. In early September the Polish Centre for Eastern Studies assessed that Russian forces had reached the Dobropillia-Kramatorsk road, seriously complicating Ukrainian supply to the town, which now has to travel by detour.

Dobropillia is not just another town

The significance of this axis extends far beyond the town itself. If Russian forces manage to bypass it or cut the main roads behind it, the pressure shifts onward to Druzhkivka, Kramatorsk and Sloviansk - the last major urban centres in the Donetsk region still under Kyiv's control.

The tactic is recognisable and does not rely on a frontal assault. For months Russia has been pressing simultaneously towards Pokrovsk, Kostiantynivka and the area south of Druzhkivka, striking roads, depots and logistics hubs. The aim is not to take a town in a day, but to gradually narrow the supply corridor and force the Ukrainian command to keep throwing in fresh reserves.

The front is not only breaking in Donbas

And there is the real problem for Kyiv: reserves are not needed only at Dobropillia. Russian forces are simultaneously continuing operations in the Kharkiv, Sumy and Zaporizhzhia regions, forcing the Ukrainian command to spread units along an enormous front line.

On the Kupiansk axis Russian groups are trying to establish themselves across the Oskil river, but the Ukrainian side still controls both towns and is counterattacking. In the north of the Kharkiv region the fighting continues towards Vovchansk and the border, while Russian forces try to form a buffer zone along the Belgorod region. In the Sumy region the attacks are largely local in character - but their sheer persistence is what forces Kyiv to keep units there that would otherwise go to Donbas.

The Institute for the Study of War also warns that part of the Russian advance is small-group infiltration rather than stable seizure of territory, and that at individual points Ukraine has managed to push them back and recover its positions. That is the distinction that rarely makes the headlines - between how much territory has actually changed hands and how much appears to have.