Europe is confronting a growing Russian security threat beyond Ukraine, with drones, sabotage, cyberattacks and interference with critical infrastructure increasingly testing the boundary between peace and conflict, Michelle Brouhard, Head of Policy and Geopolitical Risk at Kpler, said in a Thursday note.
The risk is acute in the Baltic Sea, where Russian military activity, commercial shipping, shadow-fleet tankers and critical infrastructure operate in a relatively confined maritime space. Nato sees the protection of undersea cables, energy networks and digital systems as a priority.
The Danish Straits are emerging as a key point of concern because they connect the Baltic Sea with the North Sea and the wider Atlantic.
Kpler data show about 1,600 vessels pass through the straits each month, carrying about 6% of global seaborne crude oil and petroleum-product trade. The waterways therefore combine strategic military importance with significant commercial exposure, including Russian commodity flows.
The Baltic is part of a broader deterioration in maritime security affecting Europe's energy trade.
Shipping through other strategic waterways, including the Sea and Strait of Hormuz, has become increasingly exposed to military threats, forcing governments and shipowners to rely more heavily on naval protection, rerouting and additional security measures. As a result, waterways can remain open, but they become more costly and harder to operate.