A N A LY S I S PEACE AND SECURITY RUSSIA’S INVASION OF UKRAINE The Iran Nuclear Price Tag The invasion of Ukraine re­duced Russia’s ability and will­ingness to support the Iran nu­clear deal’s restoration. Russia’s position negatively affects the already dim prospects for a JCPOA revival in 2023. In becoming more reliant on Iran for economic and battle­field support, Moscow has lost leverage over Tehran in the nu­clear talks. War in Ukraine has also made Moscow less willing to insulate cooperation on nu­clear issues from its broader stand-off with the West. Hanna Notte SFepbtreumarbye2r0220321 As long as it is fighting in Ukraine, Russia will likely view Iran’s pursuit of nuclear thresh­old status as serving its inter­ests—even though it could pose a strategic headache for Russia in the long term.