Regime = an authoritarian government.

Klitschko says Ukraine is turning authoritarian as conflict with Zelensky persists

https://kyivindependent.com/klitschko-says-ukraine-is-turning-authoritarian-as-conflict-with-president-persists/#:~:text=Klitschko%20says%20Ukraine%20is%20turning%20authoritarian%20as%20conflict%20with%20Zelensky%20persists,-Share&text=Kyiv%20Mayor%20Vitali%20Klitschko%20has,criticism%20of%20President%20Volodymyr%20Zelensky.