The European Union has raised concerns about the expanding Russian shadow fleet involved in evading international oil sanctions amid the Ukraine war, estimated between 600 to 1400 tanker vessels. These ships facilitate Russia's war economy while posing significant environmental and maritime safety risks, as many vessels have unclear ownership and limited insurance, potentially burdening coastal states with spill damages. Suspicion exists that some shadow fleet tankers serve as bases for drone operations, referencing recent unexplained drone sightings in Copenhagen that disrupted air traffic. Several EU countries including Germany, France, Estonia, and Finland have taken actions against specific shadow fleet ships such as Eventin, Boracay, Kiwala, and Eagle S. EU External Affairs Chief Kaja Kallas urges enhanced coordination with coastal and flag states, advocating naval inspection rights to control these ships better. Since June 2025, three EU naval operations, including Germany-participated 'Aspides', monitor the fleet. The EU plans to expand sanctions from 444 to 562 vessels to combat this adaptive sanction evasion, involving tactics like transponder manipulation and at-sea oil transfers. Approval from EU member states is needed for proposed tougher measures in the upcoming 19th sanction package.

The European Union has raised concerns about the expanding Russian shadow fleet involved in evading international oil sanctions amid the Ukraine war, estimated between 600 to 1400 tanker vessels. These ships facilitate Russia's war economy while posing significant environmental and maritime safety risks, as many vessels have unclear ownership and limited insurance, potentially burdening coastal states with spill damages. Suspicion exists that some shadow fleet tankers serve as bases for drone operations, referencing recent unexplained drone sightings in Copenhagen that disrupted air traffic. Several EU countries including Germany, France, Estonia, and Finland have taken actions against specific shadow fleet ships such as Eventin, Boracay, Kiwala, and Eagle S. EU External Affairs Chief Kaja Kallas urges enhanced coordination with coastal and flag states, advocating naval inspection rights to control these ships better. Since June 2025, three EU naval operations, including Germany-participated 'Aspides', monitor the fleet. The EU plans to expand sanctions from 444 to 562 vessels to combat this adaptive sanction evasion, involving tactics like transponder manipulation and at-sea oil transfers. Approval from EU member states is needed for proposed tougher measures in the upcoming 19th sanction package.