Western observers have likely underestimated the number of Chinese nuclear submarines in development, but overestimated how many are operational, a new analysis suggests. In particular, only half of ...

Through September this year, Colombia's navy had captured 14 "narco subs" on the country's Pacific coast — more than triple the four it captured all last year and another sign of drug traffickers' ...

US and European officials have warned repeatedly in recent years that more sophisticated and more active Russian submarines pose a growing threat, and NATO countries are taking steps to counter that ...