The Ukrainian strike on the course circuit is an unexpected movement and frequently criticized by commentators of the situation on the front. However, this movement seems to make sense for at least a fewer reasons. First, Ukrainians threw their reserve brigades into Russian "soft underbelly". In place of unfortified and powerless Russian land troops. The closest larger Russian forces are present in the Biłogrodki Oblast and in the Ukrainian Kharkiv Oblast. However, they are tired and damaged forces in the course of their actions, and in addition, they are linked to the fight against a strong group of Ukrainian troops, which first bound them and now binds them inactive and even presses them in the northern direction. Further Russian forces are inactive in the east and in the first hours, or even days, will not be able to be utilized in the Kursk circuit.