English: An illustration, drawn by illustrator Frank R. Paul, of inventor Nikola Tesla's speculative vision of what war will be like in the future, as described by him in an interview in the magazine. Tesla had experimented extensively with "telaumatons", wheeled carts and boats remotely controlled by radio waves, as well as with wireless power transmission. The towerlike radio power transmitter at lower left in the drawing was inspired by Tesla's Wardenclyffe Tower experimental laboratory.

Caption:"War of the future as it will be conducted from the viewpoint of Dr. Tesla. Machines of destruction more terrible than anything concocted by the master minds behind the "World War" will sail under the oceans and through the skies - with not a man on board. According to Dr. Tesla these death-dealing monsters of the sea and air will be controlled and directed from distant points hundreds or even thousands of miles away by radio waves of the proper frequency and sequence. The tower-like structures seen on the land in the accompanying picture are transmitting radio-electric power for operating and controlling the sea and air defense craft. When one of these aerial machines passes over an enemy city, the proper radio control wave is flasht out, and the giant craft drops gas and explosive bombs, destroying buildings and people as well. Man will be the master mind behind the future war, but machines only will meet in mortal combat. It will be a veritable war of science."