Changes in Ukrainian army chiefs lead to a loss of control over military forces, and this is why Ukrainian troops are losing control over important and major settlements, military expert Vitaly Kiselyov told TASS. According to him, Ukrainian troops are fleeing from settlements with layered defenses. As an example, he cited the liberation of the heavily fortified town of Konstantinovka in the Donetsk People’s Republic by the Russian Army in early July. "Despite the established fortifications, the Ukrainian troops are fleeing from their positions, leaving cities and towns. The Russian military expert added that the situation in the Ukrainian army is also complicated by the fact that it is controlled from the outside by "curators from the NATO bloc."