US Navy christened a new autonomous ship in the fleet: the unmanned surface vessel (USV) named Mariner.A ceremony at the U.S. Naval Academy was organized to mark this milestone.It is the latest so-called “ghost ship” to join the US Navy at sea. The Mariner is the third of four Overlord USVs the US Navy ordered, the last one is still under construction.Viewers may note that the aim of the Overlord program is to convert commercial fast supply vessels which are used to service and resupply oil and gas platforms at sea into an experimental unmanned ship that could navigate the ocean with or without human help.Interestingly the first two – the Nomad and Ranger, participated this summer in the Rim of the Pacific international training exercise which was one of the biggest deployments of an uncrewed ship to date. The fourth ship – Vanguard is being built by Austal USA.In this video Defense Updates analyzes what Ghost Fleet brings to the table for the US Navy?#DefenseUpdates #USNavy #UnmannedSurfaceVessel