States
Russia and Iran are operationally aligned in Syria, where they coordinated against the anti-Assad opposition for nearly a decade, and the alignment has deepened since 2022 with Iranian drone and short-range missile transfers to Russia for use in Ukraine. Moscow provides political cover for Iran at the UN Security Council and has supplied air-defence components and some advanced military technology. The alignment is closer than the "axis" framing suggests but is constrained by Russia's commitments in Ukraine.
Total loss of Iranian regime
Strategic disaster for Moscow's regional posture.