The European Union is intensifying its crackdown on Russia’s shadow fleet by expanding flag verification ventures under Operation IRINI in the Mediterranean and by authorizing linked efforts under Operation ATALANTA in the Red Sea and Indian Ocean. On July 20, the oil tanker MV SOUTH STAR was boarded for flag verification amid concerns it sails under a false flag, with authorities noting sanctions and broader aims to cut revenue supporting Russia’s war machine. EU officials, led by Kaja Kallas, describe the measures as a coordinated tightening of the sanctions regime at sea, combining enforcement with maritime security to deter illicit oil trade. The EU reports multiple prior interceptions and views these actions as part of a broader strategy to deter shadow fleet activity and ensure vessels comply with international law, including stop-and-inspect capabilities. Brussels has also updated rules of engagement to allow more frequent flag-verification boardings, signaling a broader, synchronized effort across IRINI and ATALANTA to curb illicit maritime activity linked to Russia. The overall thrust is to escalate and synchronize EU naval operations to choke off revenue streams used to fund the Kremlin’s war effort, while defending maritime security and rule of law.