Soldiers of the Territorial Defence Forces engaged in protecting Operational Zone Pivnich (North) have prevented an attempt by a Russian sabotage and reconnaissance group (SRG) to cross the state border of Ukraine on the Sumy front, killing some of the Russian invaders.
Concrete barrier structures are being erected in the border areas of Operational Zone Pivnich (North). Source: Joint Forces Command (JFC) of the Armed Forces of Ukraine (AFU) Details: Tetrahedrons are anti-tank concrete barriers that are part of the defence system of platoon strongpoints.