Undersea #Drone That Attaches Itself To Other Vessels Unveiled By Lockheed
Lamprey, which #LockheedMartin describes as a multi-mission autonomous undersea vehicle (MMAUV), has a largely square hullform and 24 cubic feet of internal payload space. It is electrically powered and features a built-in hydrogenerator that allows it to recharge its batteries during missions. It has two propulsors at the rear, as well as two mounted sideways in the body.
https://www.twz.com/sea/drone-mini-submarine-that-attaches-itself-to-other-vessels-unveiled-by-lockheed
Undersea Drone That Attaches Itself To Other Vessels Unveiled By Lockheed

Lamprey can launch aerial drones, launch decoys, and fire torpedoes after arriving discreetly in an operating area by hitching a ride.

The War Zone
@BenjaminHCCarr Every year there are more categories of drones, potentially autonomous, that maybe should be added to banned weapons lists.