angrysoba
Philosophile
I certainly hope they're smart enough to hold the rebels west of Kiev at least. That way they should be able to hold them accountable for either espionage or treason, depending on their nationality.
McHrozni
If you watch this video you will see that the majority of people are regular citizens who have taken over some of the infrastructure and they are not keen on central government troops.
http://www.bbc.com/news/world-europe-27045282
Are you suggesting they all be arrested and charged with treason? That's going to involve an awful lot of trials.
The reporter then finds some of the "little green men" who apparently are said to be Russian spetsnaz, and when he asks them if they are Russian, he says "We are all Russian", but it turns out that he means culturally Russian as he has a Ukrainian ID card. Yes, it could be fake, of course. But on the other hand another theory is that many of these people are Yanukovych's security forces who have fled Kiev and regrouped in East Ukraine maybe with or without Russian direction.
In other words, as ever things don't seem to be as simple as you and others always make it sound.