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Their loyalty or dis-loyalty is an non-issue really. It doesn't depend on them. There will always be enough Russians who will give the "legitimacy" for the Moscow's actions, it doesn't really take that many. After that it's easy to send "freedom fighters" into the country. What really matters if there are significant pockets of Russians or atleast Russian speakers in the country. Land border with Russia is obviously must, as it's easier to smuggle "freedom fighters" and weapons for them.
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