The Kursk attack by Ukraine has been an interesting thing to watch.

Hurts Putin and the MoD domestically, allows Ukraine to attack troops in weak positions or rushing to reinforce, *may (to be determined) ease pressure on the Donbass, forces Russia to no longer treat the border as only something they can cross in force which will create a much greater 'garrison' requirement and deplete manpower availability for the fighting in Ukraine.

Just wonder what Ukraine will do in there in future. Assume they'll dig in and make it as difficult as possible for Russia to 'restore their borders' so it remains a thorn in Putin's side.