For months now, Russia has been chewing its way deeper into Ukraine territory, averaging about 1km/day (that’s 0.02 MPH for people whose countries landed men on the moon). After a brilliant feint to the south which caught the Russians deploying the wrong way, and caught the pundidiots cock-a-doodling about the “failure” of Not The Main Offensive Effort, the Ukrainians massed their forces in the north instead, and have averaged advances of 20km/day. Put another way, Russia has demonstrated that their tanks can go 20x faster in reverse than they go in forward gear.