DARPA’S ‘MANTA RAY’ UNDERWATER DRONE COULD BE A GAME CHANGER !USA Submarine Warfare Underwater Drones Leave a Comment on DARPA’S ‘MANTA RAY’ UNDERWATER DRONE COULD BE A GAME CHANGER https://www.youtube.com/watch?v=4W1xGUlqCEs (Visited 2 times, 1 visits today)
