Yes, it's impressive if true. I thought the Ukrainians would move quick once they had found the right spot(s) to advance, they'll get way inside the Russians decision loop and give them no chance to respond meaningfully. (and hopefully crack the Russians wide open.)South of Tokmak is 40+km from the “front lines”…. Wow!!!!
Certainly a highly organised rapid attack IF that is the case.
Russian frontline artillery wouldn’t be able to to turn around and fire at that attack either. They would have to retreat back first and then fire backwards.