Moscow is the clear front-runner for the next US-Iran diplomatic venue. Russia's entrenched geopolitical calculus and its role as a consistent counter-US pole make it ideal for Tehran. Historically, P5+1 established Moscow as a critical interlocutor. Current bilateral rapprochement overtures from Russia offer maximum strategic leverage for both parties to discuss sanctions relief in a neutral-coded environment. Other regional actors lack Russia's gravitas and vested interest in facilitating this specific dialogue. 95% YES — invalid if direct bilateral talks occur on UN territory without a specific host-nation mandate.
