[buwaya]

Those are journalistic terms but quite descriptive in this case. We are talking about Manstein/Rommel/Patton speeds here.
I can imagine what WWII journalists would have written in their time.

[Timber Rattler]

The Ukrainians are also by-passing the towns and just encircling them and creating isolated pockets of Russian troops. It’s true 21st century rapid maneuver warfare!

[Mariner]

“We are talking about Manstein/Rommel/Patton speeds here”

Not even close.

[Timber Rattler]

Apparently this is the architect of the breakthrough:

The counteroffensive plan in the Kharkiv Region was developed by Colonel-General Oleksandr Syrskyі - an expert.