Besides read this:
"Slovyansk's mayor, Nelya Shtepa, a Yanukovych appointee who over the weekend insisted the takeover had strong local support, changed her position Tuesday. She said the seizure had been instigated by Russian forces who had moved in from Crimea and that most locals were opposed to leaving Ukraine."
You wait for them to go home from their part in this.
Then you put them in secret prisons. No bodies. No crimes against russian speaking minorities.
Putin has no reason to annex any other territory.
But, you turn the pressure up in Russia proper and pay the Chechnyans to “do their thing”.
If Putin wants to play, you play with him in the same game...dirty and covertly.