The Dissolution of Czechoslovakia (Czech: Rozdělení Československa, Slovak: Rozdelenie Česko-Slovenska) took effect on January 1, 1993, and was the self-determined split of the federal republic of Czechoslovakia into the independent countries of the Czech Republic and Slovakia. Both mirrored the Czech Socialist Republic and the Slovak Socialist Republic, which had been created in 1969 as the constituent states of the Czechoslovak Federal Republic.
The Catalan independence movement (Catalan: independentisme català;[a] Spanish: independentismo catalán) is a social and political movement (with roots in Catalan nationalism) which seeks the independence of Catalonia from Spain, along with in the movement supporting the independence of Northern Catalonia from France, and Alghero from Italy (among other Catalan-speaking areas, referred to as the Catalan Countries).
The Basque conflict, also known as the Spain–ETA conflict, was an armed and political conflict from 1959 to 2011 between Spain and the Basque National Liberation Movement, a group of social and political Basque organizations which sought independence from Spain and France.
There are a few counter-examples and Czechoslovakia is definitely one of them.
The Catalan and Basque independence movements, however, have been successfully contained by Spain. They lacked external support and could not compete with the strength of state suppression. If a neighbor ever chooses to get involved we might see independent Basque and Catalan countries.
As I thought about it today, maybe a better example might be the en/exclaves in the India/Bangladesh borderland established after the partition. It looks like these might have been rationalized in the last 10 years.
Inside the main part of Bangladesh, there were 111 Indian enclaves (17,160.63 acres), while inside the main part of India, there were 51 Bangladeshi enclaves (7,110.02 acres). Under the Land Boundary Agreement, the enclave residents could continue to reside at their present location or move to the country of their choice.
What a terrible claim. For one, if you take a look at their other comments and submissions they don't talk Russia much for propaganda. For two, if they were, I'd like it if their paymasters wasted more money on them. Feed a troll, bankrupt the Ruskies!
Like with Ossetia, Abkhazia, Transnistria, &c the central actor is Russia, not the regions themselves.