The very thing Russia wanted to avoid

On March 19th, 2022, I'd written that it would be a great irony if Putin's war to prevent Ukraine from joining NATO resulted in Finland and Sweden joining NATO.

Finland's accession effectively doubles Russia's border with NATO countries, and the unanimous consent from the other 30 countries required for it belies one of Putin's justifications for the war -- Russia wanted to prevent NATO's expansion. [Source]

This isn't "NATO aggression." It's the growing acknowledgement of proven belligerence, and forming a common defense. [Source]