Iran is a terrorist state that can act on its own…do we have to blame Russia for everything? They can barely keep together in Ukraine, talk less of entering another war with a strong US ally.
Despite that, my money is on the Saudis stirring shit up again. Financing terrorists to fight against western interests is kinda their thing. Say what you will about Russia, but they clearly fight and die in their own battles.
If the US gets bogged down with a conflict in the Pacific, Ukraine and Israel are going to be in serious trouble...World War 3 will likely ensue.
Of course it doesn't help that Palestinians, the original Muslim inhabitants, are treated as sub-humans by Zionist Jews so there's very bitter hatred between the two groups.