NATO’s Innovation Fund (NIF) has led a €9mn seed investment into German startup ARX Robotics, which builds unmanned ground robots for the battlefield.   The startup’s war bots look like small tanks — but without guns. The vehicles drive around on treads, and can be fitted with equipment like radar, mine-sweeping devices, or medical stretchers.  ARX sells four different machines. The largest carries military payloads weighing up to 500 kg — including injured soldiers — across the battlefield. Another model acts as a moving target-practice device, while another carries drones into combat. ARX’s robots can be fitted with equipment like radar,…

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