Who controls Donbas region?

The conflict rendered the Donbas split between Ukrainian-held territory, constituting about two-thirds of the region, and Russian-held territory, constituting about one-third. Russia went on to launch a full-scale invasion of Ukraine, including the Ukrainian-government controlled part of the Donbas in February 2022.

What two countries have a dispute over control of Crimea?

Autonomous Republic of Crimea The Crimean problem (Russian: Проблема Крыма; Ukrainian: Кримська проблема) or the Crimean question (Russian: Крымский вопрос; Ukrainian: Питання Криму) is a dispute over the status of Crimea between Ukraine and Russia.

https://www.youtube.com/watch?v=aQJ7Am1dOVE