Crimea voted Russian, when Ukraine couped, it has about a 75% Russian population, like the Eastern separatists regions.

Except historically Crimea has always been Russian. For the last few hundred years. It was gifted to Catherine the Great by separatists from the Ottomans, as a province, seeking a Russian protectorate. It has since been Russian.

Crimea like Hawaii has a huge naval and various military bases. These also manufacture and build.

It was a simple example not a direct parallel.

There is far more to that history but briefly unless you will debate otherwise. That's a run down. Far more like perhaps Cossacks. Curiously remember a line from Sean Bean in Goldeneye where did he come from? Eastern Ukraine separatist province. For the LOL. Seriously. Was Stalin a Cossack? Dunno, but asking. Although a different region?