Submarines
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Yes, France's Barracuda-Class Suffren Submarine Is One of Quietest Ever Made
See This Submarine? It Could Likely End the Human Race (Or Close To It)
Why It Is Past Time for the Navy to Bring Back Diesel Submarines
This U.S. Nuclear Submarine Smashed Into an Underwater Mountain (And Survived)
Hitler's Submarines Almost Launched A Missile Attack On America
Stories From Submarines
