There will also be a revolution in going all the way to the seafloor and have submarines and drones with wheels hiding in the hills and rocks on the ocean floor.

Undersea drones (UUVs) will disrupt modern antisubmarine warfare (ASW).

Drones can be better at tracking and destroying diesel-electric subs, even those which use Air-independent propulsion (AIP) technology. These vessels can operate more quietly than manned subs, and remain submerged for a greater length of time. Instead of hunting enemy submarines, they can simply lay in wait until the prey comes to them.

In March, 2017, China released 12 unmanned drones, known as gliders, into the depths of the South China Sea.

China's Haiyi (or "Sea Wings") unmanned underwater glider drone set a world record for deepest depth before being retrieved from the ocean by the crew of the Tansuo-1 ship on March 5, 2017 in this still from a clip shared by the state-run China Central Television network.

China has plans to create a Underwater Great Wall with sensors and drones on the seafloor.