The Hidden WW2 Super Submarines
17:52
The Mysterious Deformed Sub of WW2
17:45
The US Submarine That Sank an Island of Ships
52:31
The Hidden Underwater Theatre Of The Cold War | Submarines In Enemy Depths | Timeline
13:02
Underwater Aircraft Carriers: Japan’s Secret Weapon
19:52
Inside the V3 Nazi Super Gun
5:04:25
5 Hours Of U-Boat & Sea Warfare Facts To Fall Asleep To
47:23
Mystery of the China Seas (Full Episode) | Drain the Oceans
13:59