As the Unmanned Surface Vessel Ranger was roaming the seas in September of 2021, her missile launcher suddenly stirred from inside its container and launched an SM-6 missile into the sky, proving that a commercial hull could be transformed into an operational, advanced technology warship.The development was part of the Ghost Fleet Overlord program, a joint effort between the US Navy and the Secretary of Defense Strategic Capabilities Office that had been experimenting with unmanned ships controlled entirely from the ground for years.Still, the significant milestone promises to change the balance of combat entirely. With autonomous and weaponized ships underway, unexplored limits within international agreements will need to be defined and tested, paving the way for armed conflicts at sea that could soon reach new and dangerous heights.