Windows are a key point of vulnerability for any military vehicle, so Honeywell International presented a system that eliminates them altogether. The driver sits in the cockpit and views the world outside through near-eye VR goggles that effectively turn the cabin transparent for 360-degree vision. It seems to work; "numerous tests" have seen drivers complete off-road courses in these blacked-out cabins with no appreciable penalty to their course times.

A technology from the Ground X-Vehicle Technology (GXV-T) program.

[Source]