The US Army has ordered 624 Small Multipurpose Equipment Transport, or SMET, from General Dynamics Land Systems. The $162.4 million contract kicks off the eventual 624 SMETs order for the Army. The land drone units will be deployed by 2021.The land drones will be unmanned and optionally manned and are able to carry 1,000 pounds. They can travel over a distance of 60 miles in a 72-hour period while also providing 3kw of power while stationary and 1kw while moving for charging equipment and batteries.
Source : US Army Getting Robotic Squad Support Drone Vehicles – NextBigFuture.com