can't find it :( looking myself for an hour already. too much junk on internet and it pushes only "new" stuff.
but to sum up:
- ukraine messed up by not anticipating attack from belorus through chernobyl
- didn't anticipate russian airborn forces flying to hostomel airport on few dozens of helicopters and taking over it (as preparation for full blown deployment on 2 dozen of planes)
got lucky with:
- battle of ivankiv delayed russian forces moving to kyiv
- shelled the crap out of hostomel airport, causing russians to loose control over it (airborn forces on planes literally made u-turn in the air ). i think only a couple of russians survived it.
- blew up a few dams of small rivers, turning large area to impassable swamps what prevented russian forces from getting to hostomel to support paratroopers there.
there was some russian unit of national guard or swat that somehow outrun rest of russian army and they decided to show initiative and play "capture the flag" in kyiv (not clear what exactly they planned), but they did manage to drive into kyiv in a couple of cars, and were all hunted down and killed within few hours