The Russian occupiers currently control a large part of Severodonetsk, but there is no danger of operational encirclement of the Severodonetsk and Lysychansk garrisons. 

According to local sources at the CI "Prava Sprava" analytical department, Russian invaders are bringing modern air defence systems to the Severodonetsk region. 

The occupiers have redeployed the S-300V4 anti-aircraft missile system, according to local sources of Prava Sprava. This complex can defeat a variety of aerodynamic and ballistic targets at ranges of up to 400 km and altitudes of up to 30-35 km.

The S-300V4 is created to protect troops on the march, in deployment areas, and on the battlefield. It has a self-propelled tracked chassis on which all necessary equipment is mounted. 

The air defence system consists of a command post, various radars, self-propelled launchers and launchers, and various types of SAM. 

The S-300V4 can hit aerodynamic targets such as aircraft or means of destruction at a range of up to 400 km using a variety of missiles.

The occupying country characterises its S-300 SAM as an indestructible component of air defence. However, Azerbaijan provided evidence of the S-300's destruction during the war in Nagorno-Karabakh. It is worth noting that the complex was destroyed using a kamikaze drone developed in the mid-2000s.

It should be noted that the redeployment of the S-300V4 anti-aircraft missile system to the combat zone is connected to the Armed Forces' successful strikes on the enemy's rear bases in the Krasny Luch (Khrustalny) and Popasna areas. 

The local resistance movement provided the Armed Forces of Ukraine with the coordinates of the enemy's rear bases. 

Russian air defence systems in eastern Ukraine, according to ISW, limit the effectiveness of Ukrainian drones, which is why Ukraine's Armed Forces have reduced air operations to 20-30 flights per day.

As previously reported, the information of "Prava Sprava" about the use of BMPT "Terminator" by the Russian occupiers was confirmed. The relocation of BMPT "Terminator" in the amount of four units was recorded in the area of ​​the settlement of Komyshuvakha, Luhansk region.

BMPT "Terminator" is designed to act as part of tank formations to destroy enemy anti-tank weapons, to suppress manpower armed with grenade launchers, anti-tank systems, and small arms, and can also hit tanks, infantry fighting vehicles, and bunkers.

Furthermore, local Prava Sprava sources in the Severodonetsk region reported that the occupiers used the Malka ACS and the UR-07 remote demining systems. 

ACS "Malka" is a 203 mm calibre upgraded version of the 2C7 "Peony." ACS is intended to destroy specially protected control points of troops, artillery, mortars, armoured vehicles, rear, and the enemy manpower. 

According to experts, the Russian Armed Forces currently have up to 60 Malka self-propelled guns in service.