No military expert but it looks like they are following a pretty standard strategy of targeting and destroying air power throughout the country by bombing airports, radars, and air force facilities in general.
How far will their ground troops then go? We shall see...
It maps troop movements, though. All of those initial bombings have happened from Russia, Crimea and Belarus.
Apparently this phase won't last long because it can't (Russia according to analysts in the Guardian doesn't have many guided munitions in this range).
So we will perhaps see this map change very quickly as troops move in.
