I just referred¹ to this meme as the fundamental thing to understand about Ukraine, and I do believe it is: NATO is a voluntary organisation, respectful of the will of the peoples. That is radically different from the yoke of Russian imperialism..
Now, there is also something seriously incorrect about this image: France actually never left NATO, only its integrated military command structure.
And that is very relevant to a problem we all have today.
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¹ https://bagarrosphere.fr/@photos_floues/112189360475361473