Let's start with Ukraine. In any case, Ukraine's national strength is very weak, and it is the rhythm of dying for Russia. How dare you be so provocative? In fact, it is not surprising that western countries, especially the United States, stand behind Ukraine. As mentioned above, Ukraine also seeks help from western countries.
Because there are too many oligarchs in Ukraine, Russia's decapitation has lost its effect. For example, if poroshenko is removed from the beheading operation, Tymoshenko may come to power in Ukraine immediately, just as the Monkey King is beheaded by the heavenly soldiers on the demon chopping platform, but after cutting off a head, another head grows endlessly and headless, so there is no need for Russia to take the beheading operation. The war strategy that Russia is likely to adopt is to nibble step by step. Anyway, the eastern part of Ukraine is a pro-Russian region, which is easy to occupy and attack the core of Ukraine.
The so-called beheading has always been a military strategy of "catching the thief first, catching the king first", but it is ineffective for Ukraine, because there are too many "thief kings" in Ukraine, and beheading has no effect at all. Although Ukraine is a very failed democracy, it is basically a group of oligarchs fooling the Ukrainian people. In fact, a group of oligarchs took turns to come to power.
So far, poroshenko's irrational escalation reflects the weak nature of his low approval rating. So that the best way is to let it die, accelerate the emergence of internal contradictions, and make it lose in the general election and step down. If Ukraine takes the initiative to stir up trouble, Russia will not take the "decapitation" action first, but it will reserve the right to use this means.