The German navy used unmanned remote-controlled boats for decades as minebreakers (triggering naval mines), minehunters all over the world have used remote-controlled submersible drones to identify and to blow up naval mines, and the first unmanned powered boat was built and tested by Siemens around 1870.

The first robot tank was built at the latest in 1930, and envisaged decades earlier by futurists. Both the remote control by radio and the tank itself were technically feasible prior to the First World War.

FK – Now if we could ‘refine’ all the ‘drones’ who go vote for a new king every four years.