A Russian submarine unexpectedly surfacing off the coast of France has sparked a wave of speculation about whether the incident was standard naval protocol or a sign of deeper technical troubles ...

The US Navy recently conducted a tabletop submarine search-and-rescue exercise. Responders were trained to react to varied distress scenarios, some involving historical elements. For example, aspects ...

A Russian submarine travelling through the English Channel has triggered widespread alarm amid claims of a possible fuel leak and explosion risk — raising fresh concerns about the state of Moscow’s ...