How can the peace for Ukraine come to an end?

The previous record of the Ukrainian spring offensive, which turned into the summer offensive and is now expected to extend into the autumn, is disappointing. Although there are occasional reports of supply difficulties on the Russian side, diminishing combat morale, and a weaker second defense line, the fact remains that the Ukrainian troops have hardly advanced more than ten, fifteen, at most twenty kilometers along the front. Compared to the 100,000 square kilometers still occupied by Russia, only 250 square kilometers have been liberated this year.