Add Yahoo as a preferred source to see more of our stories on Google. China has unveiled the design of an unprecedented large uncrewed diesel-electric drone submarine. An online defense news outlet ...

Anne Graham knows every inch of the 19-foot long, Sturgeon-class submarine replica that she and a small band of former submariners have built in Central Oregon. The 74-year-old Redmond resident even ...

French Defense Minister Sebastien Lecornu (2nd L) inspects a submarine model, flanked by Naval Group executives, at the Euronaval 2024 trade show outside of Paris on Nov. 4, 2024. (Dimitar Dilkoff/AFP ...

Key Points - The Soviet Union's Alfa-class (Project 705 Lira) submarine, introduced in 1971, was a revolutionary hunter-killer boat designed for high-speed interception. -Its two key innovations were ...