This is an excerpt from their column dated February 25th:
As expected, not a lot of the nearly 200,000 Russian troops now near the Ukraine borders actually entered Ukraine. All, or most appeared to be volunteers, rather than the one-year conscripts that comprise half the strength of the armed forces. Few of the conscripts and even fewer of their parents are eager for the conscripts to be fighting neighbors.The Ukrainian newspaper, The Kyiv Independent, reports that as of February 26th the Russians have lost 3500 soldiers, 102 tanks, 536 armored vehicles, 14 fighter jets, and 8 helicopters.
Russian airborne forces managed to take an airport ten kilometers outside Kyiv. Efforts to use that airport to bring in additional troops were disrupted by the Ukrainian use of Stinger portable anti-aircraft missiles as well as rifle and machine-gun fire at low flying aircraft.
The airport was quickly attacked by a Ukrainian army rapid reaction force organized and trained for retaking key locations seized by Russian airborne forces.
While the area around the airport was soon surrounded by regular reservists and armed volunteers, the Rapid Reaction unit retook the airport before the Russians could use larger transport aircraft to bring in more troops. [Today's news brings word that the Ukrainians have shot down at least two Russian transport planes, each capable of transporting up to 150 troops].
Russia appears to have underestimated the preparations Ukraine has made since 2014 to deal with this kind of invasion. In addition to 150 local defense units (of at least battalion size [400-800 troops]) arrangements were made to quickly arm, train and deploy volunteers, which includes all physically able males aged 16 to 60.
The regular army obtained more portable anti-aircraft weapons and trained special units to deal with any Russians that seized key objectives. All those armed Ukrainians were more of an obstacle than the Russians expected.
The invaders are using about a dozen main roads from the border to objectives inside Ukraine. Within hours all those roads were under fire from the armed locals. Even convoys with numerous armed escorts were fired on and the Russians did not have enough troops to clear the roads of armed hostiles.
Some convoys were halted by roadblocks, and at least one Russian reconnaissance platoon was captured.
While the Russians control most Ukrainian airspace and coastal waters, land areas remain under Ukrainian control. An amphibious assault on the major Black Sea port of Odessa failed and most ground advances appear to have stalled as well.
I don't know how trustworthy those numbers are, but if they're in the ballpark it seems that Vladimir Putin is so far paying a steep price for his decision to invade Ukraine.