DARPA has been experimenting with giving off-road autonomy to driverless combat vehicles
DARPA’s Robotic Autonomy with Resilience in Complex Environments (RACER) has completed a successful experiment. The program is now moving to more challenging off-road terrains at Camp Roberts in California for trials scheduled for September 15-27.

Off-road autonomy for driverless combat vehicles

The program’s stated goal is to \”give driverless combat vehicles offroad autonomy while travelling at speeds that keep up with those driven in realistic situations by humans.\”

Source:
https://interestingengineering.com/innovation/darpa-driverless-combat-vehicles