The Russian army is building up a group near the borders of Chernihiv and Sumy regions, according to the acting deputy chief of the Main Operational Directorate of the General Staff of the Armed Forces of Ukraine, Colonel Ihor Prokhorenko. “As for the Sumy direction, the situation is stable and controlled there today. The Russian Federation keeps a group of troops in the border areas, which is conducting holding actions to prevent the transfer of our units to other threatening directions,” Prokhorenko said. According to him, Russia is carrying out actions to build up its grouping on the border…