Send in the drones, dropping leaflets.Might seem the safe option, but it's also a big gamble. Things are moving so fast that there could be a new and much more effective leader in Moscow by this time tomorrow.
If I was Ukraine I wouldn't go all in just yet but for sure I'd be ramping up the pressure to see the reaction.
"For you, the war is over. Go home. Protect your family in the Russian civil war."