The Iran and Ukraine wars are colliding on the world’s biggest lake. Here’s what to know

Key Points:

• Ukraine conducted drone strikes on two Russian vessels in the Caspian Sea, targeting ships allegedly transporting military cargo from Iran to Russia, including a Russian missile boat.
• Iran reported that one of its commercial ships carrying iron was hit, resulting in one death and three injuries, and condemned Ukraine’s actions as "dangerous adventurism," summoning Ukraine’s diplomat in Tehran.
• The Caspian Sea is a strategically vital trade and military route for Iran and Russia, especially after the blockade of Iranian ports in the Persian Gulf, facilitating economic and military cooperation between the two countries.
• Russia has used the Caspian route to receive Iranian drones and potentially ballistic missiles, deepening their military partnership amid the conflict in Ukraine, despite Iran’s denials of providing military support.
• Ukraine’s strikes aim to disrupt Russia’s war supply chains and highlight Iran’s role in arming Russia, coinciding with President Zelensky’s visit to Washington to reinforce alliances against Russian aggression.