A New Weapon Of War: Killer Underwater Drones
24:01
Apex Predators: AIP Submarines Explained by Covert Shores (Air Independent Propulsion)
22:46
Russian Threat To Undersea Cables & Pipelines Explained
17:28
5 Worst Submarines Ever
13:33
How Ukraine's Cheap Drones Hit Targets Deep Inside Russia, Explained
18:30
The Manta Ray: How America's Futuristic Underwater Drone will Change Warfare.
11:47
Could We Live Underwater?
14:45
Taiwan's 1st Submarine, What Other Videos Do Not Tell You
19:59