Water Drones

The US Navy has successfully completed a test mission for autonomous, unmanned boats that can protect a bigger ship, or swarm an enemy target with co-ordinated kamikaze attacks. Using existing NASA technology, these boats will be deployed within months.

[...]

“Think about it as replicating the functions that a human boat pilot would do. We’ve taken that capability and extended it to multiple units operating together...within that, we’ve designed team behaviors,” said head of the program Robert Brizzarola. The program had been partly inspired by the 2000 incident in which the destroyer USS Cole had its hull blown apart by a single explosives-laden Al-Qaeda boat.

“It will remove our sailors and marines from many dangerous situations – for instance when they need to approach hostile or suspicious vessels. If an adversary were to fire on the USVs, no humans would be at risk.”

  RT

Yeah, well, none of OUR military humans.

What could possibly go wrong?

We don't need no steenkeen Marines.

...but hey, do what you want...you will anyway.