The next battlefield could be underwater. Every day, the cables, pipelines and shipping lanes crossing Europe's waters quietly power the global economy, carrying everything from internet traffic and financial transactions to energy and trade. Keeping them safe is becoming increasingly important. #EuXl

Underwater sabotage and hybrid threats are challenging Europe's security. In June, the Commission proposed €325 billion for five defence projects, including one on maritime and…

The next battlefield could be underwater. Every day, the cables, pipelines and shipping lanes crossing Europe's waters quietly power the global economy, carrying everything from…