Ukraine's ongoing campaign against Russian energy exports and Iran-linked supply lines has extended drone and special operations strikes into the Caspian Sea, targeting cargo vessels, oil infrastructure, and naval assets to disrupt sanctions-evading trade routes used for munitions and petroleum shipments. Verifiable incidents include the July 2026 strikes on sanctioned Russian and Iranian cargo ships near Astrakhan and the September 10 attack on Makhachkala port's oil terminal, which Ukraine linked to the Russia-Iran logistics corridor. These actions align with broader Black Sea tanker interdictions but face greater range and access constraints in the Caspian. Key variables for further strikes include Ukrainian long-range drone improvements, Russian defensive reinforcements around ports like Kaspiysk and Astrakhan, and any shifts in Iranian or Kazakh transit policies amid ongoing conflict dynamics.