A new submarine cable project connecting Finland and Sweden has officially begun. This cable will run under the Baltic Sea ...

The captain of a Hong Kong-registered ship alleged to have damaged undersea cables in the Baltic Sea was assigned a lawyer in ...

The Baltic Sea is better known than the North Sea for highlighting the vulnerability of the alliance's critical undersea ...

Analysts have been tracking Russian electronic warfare from across the Gdańsk Bay, pinpointing familiar sites in Kaliningrad.

Ukraine’s Black Sea operations against Russia are shaping U.S. Navy and NATO thinking on the future of drones, mines and ...

Eastern Baltic cod grow to much smaller sizes than they did just 30 years ago, because overfishing altered their genes, ...

Four uncrewed robotic sailboats known as “Voyagers” have been put into service by the Danish Armed Forces for a three-month trial.

Ten Baltic Sea cables have been damaged since 2023, affecting Estonia, Finland, Sweden, Germany and Lithuania. At least two incidents involved ships later accused of dragging their anchors.

The Baltic Sea region is on alert and the NATO alliance has boosted its presence after a series of power cable, telecom and gas pipeline outages since Russia invaded Ukraine in 2022.

This year's BALTOPS exercise included anti-submarine warfare, countermine operations and integration with an array of robotic ...

Shipping firms may need to pay a fee to use the Baltic Sea, one of the world's busiest shipping routes, in order to cover the high costs of protecting undersea cables, Estonia's defence minister ...