Are guns effective for defending against tyranny and external invasions?

Do you think owning guns is an effective way to resist oppressive tyrannical governments and also to defend yourself against external invasions (ex: Russian attacks on Ukraine)?
Are guns effective for defending against tyranny and external invasions?
Yes, it's effective for protection against theft, assault, tyrannical regimes, and external invasions.
No, I don't think citizens should own guns.
I have a different opinion on this matter. (Comment)
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Are guns effective for defending against tyranny and external invasions?
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