Freedom, I’d say it is a certainty he will.
“Conventional wisdom about the CSTO has said that in order for peace-keeping forces to deploy, which number anywhere from 4,000 to 20,000 in various configurations, a member would have to invite them into their country. Ukraine is not a member.
But there is some speculation that Russia — as Belarus has already done this evening — could invoke a version of the international mandate of “responsibility to protect” to rescue people they believe under attack, as they perceive them as “the”r own” as ethnic Russians or Russian-speakers. Moscow has paved the way for such a notion by characterizing the Kiev authorities as “illegitimate” and the government as “non-existent.” Furthermore, the Russian-backed separatists in towns in the south and east of Ukraine have appealed for help.”