Most likely countries in WW3 scenario 1

It is a bit strange indeed, why Kazakhstan and Kyrgyzstan but none of the other "stans"? Why Czechia but not Slovakia? Why Georgia and Armenia but no Azerbaijan?

Slovakia is there

I would like to point out that this quiz totally sums up how disconnected the entire continent of Africa is from all our first-world political turmoil. Good job, Africa. No, I'm not being sarcastic. Really.

Africa has its own problems to deal with

Austria is neutral. Luxembourg is a member of NATO. I don't see any Asian countries getting involved with the exception of Turkey (NATO) and Georgia (opportunism). I assume Serbia and Belarus are on the Russian side. Iceland will be a reluctant participant as the US needs to use it as a naval/air base

Question is, who would be the aggressor? Russia, as you say? In my opinion, they would more likely attack Ukraine. Also, I think China is far more aggressive these days than most countries.