Since November of 2022, Russia had gained about 5000 square miles of territory.
Peak Russian occupation (mid-2022): Russia controlled ~22–25% of Ukraine (including pre-2022 holdings like Crimea and parts of Donbas).
Now Russia occupies ~19–20% of Ukraine.
In 2021 Russia occupied 8% of Ukraine. So in may 2022 they had gained 13% and the lost to today 5%.
So yeah, texasgator is correct that Russia lost a quarter of the Ukrainian land it gained by may 2022.
Kazan, btw isn’t that a city in the Russian federation? Do you live there now as you post this? “Since November of 2022, Russia had gained about 5000 square miles of territory.”
Total since November 2022: Approximately 4,200–5,000 square miles (~11,000–13,000 sq km), with most occurring in 2024–2025 amid intensified Russian offensives around Pokrovsk and other Donbas areas.
Impressive clawing back over 3 years and at the loss of lives and money