Crimea was historically a part of Imperial Russia for more than a century. In my understanding, if Ukraine becomes a NATO country, European Russia becomes inde

Crimea was historically a part of Imperial Russia for more than a century. In my understanding, if Ukraine becomes a NATO country, European Russia becomes indefensible. That means, the Russian govt is ready to escalate the matter all the way to the nukes. I don't expect a major conflict, but who knows.