The Ukrainian President, Volodymyr Zelensky, says his forces have liberated more than 2,300 square miles in the east and the south of the country this month.
Ukrainian troops now claim to have captured a record number of Russian soldiers, as part of a "lightning advance" that has forced Moscow to retreat.
Professor of Peace Studies at Bradford University, Paul Rogers, says although it's major news, the war is not over yet:
It has been 201 days since the invasion of Russian troops in Ukraine.
Footage has emerged online showing some commentators on Russian television questioning how the war can end & if their forces should retreat.
Dr. Payrick Bury is a senior lecturer at University of Bath - he says countering is a balancing act: