Rumors about the Russian blitzkrieg are based on the value judgment of the US intelligence, which in the course of one year made a gross mistake twice - first in Afghanistan, and then in Ukraine, incorrectly assessing the combat effectiveness of local armies. I repeat once again, the opinion that Kyiv will hold out for 3-4 days in the event of aggression from Russia belongs to the CIA. Russia is running its operation at its own pace on its own schedule and it will end when Russia says "enough".