Ukraine conducted its largest drone attack on Russian territory to date overnight between June 17th and 18th, according to the Russian Defence Ministry. The assault involved a record number of drones deployed in a single operation. A key target of the attack was an oil refinery located in Moscow. Details regarding damage and casualties remain limited and are currently unconfirmed. Russian air defenses reportedly intercepted and destroyed many of the drones, though some reached their intended targets. This escalation marks a significant intensification of Ukraine’s aerial campaign within Russia, raising concerns about potential retaliatory measures. The attack underscores a shift in Ukraine’s strategy, potentially aiming to disrupt Russia’s energy infrastructure.