Read also: Enemy regroups to resume push near Vovchansk — military expert Russian forces have been using drones for logistical tasks, said Vitalii Sarantsev, spokesperson for the Kharkiv tactical group, on national television on Aug. 25. This activity is particularly evident at the blockaded site in the Vovchansk area, specifically at the aggregate plant. Sarantsev stated that a Russian unit has been stationed at the plant for several months but is surrounded by Ukrainian forces. Initially, about 40 Russian soldiers were at the plant. The spokesperson noted that the occupiers have suffered los…