How is that not clear?
If it comes to preventing the end of the world or protecting Ukraine, NATO has already shown it would rather prevent the end of the world.
That's because NATO hadn't committed to protecting Ukraine.
If it had, Putler wouldn't have dared attack.
Again: How is that not clear?
The motivation to save the world from utter destruction gives greater reason than ever before to not start WW3... at least not over Ukraine.. treaty or no.
How is that not clear?