Kazakhstan is interesting in that it has been right at the borders of Russian sphere of influence. Which Moscow accepted! What recently happened was an internal coup where the number two (Toakev, the president) overthrew the number one (Nazarbaev, First President) along with his family, breaking he power sharing agreement and overturning the country’s constitution.
Moscow came in when called upon, and apparently it was mainly to demonstrate the legitimacy of Mr. Tokaev. And now they are already packing their stuff and leaving (quite possibly without even leaving the airport).
Will be interesting what’s up next, specially since Putin had a warm relation with Nazarbaev (who’s nowhere to be seen ever since the crisis began)