Black Knight - Prototype of unmanned - Tanks. Being tanks.

What country has developed the first unmanned turret system for tanks? - Quora

Big moves ahead on light tank, Bradley replacement and robot vehicles

Is the military anywhere near making an unmanned armored vehicle (like a tank)? - Quora

Challenger 2 main battle tank hi-res stock photography and images - Alamy

Milrem Robotics på LinkedIn: Type-X RCV RT40 Live Fire

Optical Components for Military & Defence Vehicles, Air & Spacecraft - Knight Optical

This Futuristic Unmanned Tank Could Be A Game Changer For The US Army

Altay main battle tank (2012)

The Black Eagle tank was a presumed prototype main battle tank produced in the Russian Federation. Based upon the T-80U, it was thought to have been developed by the KBTM design bureau

British Army expressed their genuine interest in advanced version of Challenger 2