It's another Georgian "Bear Trap," being engineered by Putin.
Except this time there is no George Bush to intervene for Ukraine like he did for Georgia...and Putin knows it.
The Ukraine has to stay calm and not respond hastily to these provocations. That is their intent. otherwise, the will definitely lose the entire south of their nation...if not it all.
The mysterious armed men look like Russian special forces. Of course operating with apparent deniability. Russia can claim they’re “volunteers” protecting Russian compatriots from Ukrainian fascists. And who is going to really check their credentials?