28 May: Nice. Ukrainians unleash JDAM bombs on the new Russian base in large numbers - Reporting from Ukraine

Day 825: May 28

Today, there are a lot of updates from the Kharkiv direction.

After the initial Russian plan to encircle Vovchansk had failed due to Russian underestimation and a quick Ukrainian response, Russians resorted back to their old tactic of taking the town by force.

In preparation for a large assault on the town, Russians started intensely shelling Vovchansk with both regular and rocket-propelled artillery and conducted air strikes with glide bombs. One of the results of this indiscriminate shelling is that many civilian targets were hit as well. Ukrainian civilians released footage of the aftermath of a Russian barrage on the town center, destroying houses and, among others, a supermarket. More footage shows the result of a Russian strike on a residential high-rise building. Another video shows the aftermath of a large Russian barrage on a residential area on the outskirts of the town as rescue workers salvage what they can and evacuate civilians.

A Ukrainian military blogger noted that the destruction of Vovchansk was likely being carried out to force civilians to leave and turn the town into a grey zone. Such a grey zone would significantly improve the situation for the Russians regarding urban combat. Besides avoiding collateral damage to civilians, empty houses, streets, and apartments would allow Russians to advance through the town and clear buildings much quicker and without hindrance.

Ukrainian soldiers in the area stated that while the strikes on the town continued, Russian infantry started moving in from the north with heavy artillery support. However, Ukrainians did not let the Russians walk in uncontested; they prepared ambushes and moved between tactical positions to halt and slow the Russian advance. One geolocated video shows how Ukrainians fired on advancing Russian infantry with machine guns and RPGs while moving between houses. Ukrainians used many junctions and streets to lay down fire over the roads, forcing the Russians to move off the streets and in between the houses. This caused Russians to be forced into close-quarters urban fighting, where Russian artillery support was ineffective and too dangerous due to the close proximity between Russian and Ukrainian fighters.

A Ukrainian soldier active in the area stated that Russians were attempting to gain a foothold in the northern part of Vovchansk. Such a foothold would allow Russians to have a staging ground in the town itself from which to conduct further attacks.

The Institute for the Study of War also reported that Russians used a new tactic here. Russians infiltrated Ukrainian lines in small groups of no more than five people before merging with other small assault groups into a larger force and strike group. Russians used this tactic extensively to cause confusion in the Ukrainian lines and quickly advance deeper into the town.

These larger Russian strike groups quickly crashed into the defensive line that Ukrainians had established to defend Vovchansk north of the river. This main defensive line defends the industrial zones and the high-rise district. The inherent build of these structures, with their many rooms and windows, provides an excellent defensive fighting position for the Ukrainians. Russians had initially attempted to assault this defensive belt head-on, and while drone footage shows the aftermath of heavy clashes, Ukrainians had tightly held on to their positions, fighting off the Russian assault groups.

As Russian forces wanted to maintain their momentum, they had only one option: to take control of the Hospital buildings in the eastern part of Vovchansk above the river. These tall buildings, with their many windows and rooms, provide excellent fire control over the surrounding area and enough room to safely store ammunition and gather forces. Taking control of the hospital buildings would create an opening for Russians to push further into the town and cut off a major center of Ukrainian resistance in the high-rise district. Russian supply lines were also severely overstretched, as all reinforcements and ammunition had to come from Russia itself. Establishing a forward operating base in the hospital would allow Russians to alleviate some supply pressure as well, as it then could be distributed from...