Either the West and its Allies need to go all in or the Mullahs will survive.
But they won't go in so the death toll will be far larger as Iran seeks its revenge over the next 30 years.
Definitely by terrorism across the ME and Europe, acceleration of attacks and Islamic groups across Africa, with the finale being a nuke or a dirty bomb in a European or Middle Eastern capital.
Russia needs to be tied up with MASSIVE support for Ukraine and perhaps the USMC needs to be the bait to draw out the IRGC.
These buggers are all in it for eternity while our politicians are arguing about Islamaphobia, They / Them, Victor Orban and 20mph speed limits. We need to be like the Victorians and take no BS.