Sources: BBC CNN The Age
The Swedish Coast Guard boards and seizes an EU-sanctioned Russian shadow fleet tanker in the Baltic Sea after the vessel caused a 12-kilometer (8-mile) oil spill off the coast of Gotland. 2026-04-3
The Polish Air Force intercepts and escorts a Russian aerial reconnaissance aircraft over international waters in the Baltic Sea away from nearby Polish airspace. 2025-12-25
The Russian government denies accusations made by European governments of their involvement in sabotaging two submarine telecommunications cables in the Baltic Sea as a means of hybrid warfare. 2024-11-20
The C-Lion1 submarine communications cable across the Baltic Sea between Finland and Germany is damaged in what German officials suspect is sabotage. 2024-11-18
Three separate spills are detected in the Baltic Sea following explosions in the Nord Stream 1 and Nord Stream 2 pipelines in what appear to be acts of sabotage. 2022-09-27
Russian-led consortium Nord Stream AG says it has completed the construction of the Nord Stream 2 natural gas pipeline in Germany's exclusive economic zone in the Baltic Sea. The U.S. had previously threatened to impose wider sanctions on the project if work continued. 2020-12-28
A Russian Su-27 fighter jet intercepts a United States P-8 Poseidon surveillance plane in international airspace over the Baltic Sea, with the US claiming the procedure was unprofessional and the aircraft came within 20 feet of each other. 2018-05-1
Russia’s first floating nuclear power plant, the "Akademik Lomonosov," sets sail across the Baltic Sea from St. Petersburg. 2018-04-30
Two unarmed Russian Air Force Sukhoi Su-24 jets flew simulated attacks on United States Navy destroyer Donald Cook in the Baltic Sea on Tuesday, according to a U.S. official, who described it as one of the most aggressive interactions in recent memory. A Russian Kamov Ka-27 naval helicopter also made seven passes around the USS "Donald Cook", taking pictures of the warship. 2016-04-13
Copenhagen Suborbitals fire the world's largest privately-built rocket, HEAT 1X Tycho Brahe into the Baltic Sea, 30 km east of Nexø.2011-06-3