Crimea. Again.

Crimea has been an absolute political dumpster fire since the 2014 invasion. Russia under Putin has had a vested interest in reducing the autonomy and political significance of minority groups, as evidenced by the rapidly dwindling populations of those ethnicities as pressure mounts to Russify. This has been especially apparent in Crimea. Russia has operated on a particularly dreary realist worldview, doing its best to centralize power and create a homogeneous Russia, and this has been no more apparent than in Crimea. Crimean Tatars have endured the worst of Russification, having their avenues for political representation quashed, human rights abused, and effectively trampled under government subsidized migration from mainland Russia. Russia has drawn international criticism for their handling of the invasion, the question of Crimean human rights having appeared before the International Court of Justice multiple times, each time the charges being amended with additional violations. For example, the rights of Tatars to be educated in their language, hold political demonstrations, and not be discriminated against have been violated wholesale. Ukraine has of course been vocal about their loss of land and the sovereignty of Crimea, but the European Union has given these concerns far more weight. Chief among the concerns is often the question of human rights. These issues have only become more severe as time has gone on, despite the lack of current media coverage. Russia's realist worldview and aggressive policy has created a difficult environment for Tatars, and this will continue until a significant development occurs, which is unfortunately not likely.

https://www.icj-cij.org/en/case/166