They claimed that with basically every little sprinkle of new aid for like two years, until everyone realized it was a bluff.
Putin is many things, but actively suicidal looks like a no.
Everything else is just an order for preemptive suicide.
https://www.csis.org/analysis/how-ukraines-spider-web-operat...
There is no "red line".
https://en.wikipedia.org/wiki/Red_lines_in_the_Russo-Ukraini...
Operation spider web was attack on Russian airfields primarily to reduce capacity to bomb Ukraine.
You can't nuke a country for hitting some nuclear strike capabilities you're using to conventionally bomb them.
The rest of the Arab world is mostly placated by alliances w/ the US and thus Israel, but if Israel drops an nuke all bets are off.
The Saudis will probably have a bomb before too long following a nuclear deal: https://www.reuters.com/world/us/us-removing-guardrails-prop...