Family defense is one thing, civil war is quite another. If you seriously expect that as a near term reality, might I suggest an orderly transition to a more stable environment. It beats most of the alternatives, just saying.
If that is neither possible nor acceptable to you my next suggestion would be to immerse yourself in the logistical and strategic planning. If you have the means, find an experienced individual local to you with a verifiable skillset. Recruit that individual for training purposes, potential personal protection, and as a possible asset in any upcoming troubles.
Go Ukraine! Piss on the Russian dead.
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