The first intercontinental weapon system in history was not made of metal or fueled by rockets, but built from paper, glued with potato paste, and carried across the Pacific by the wind. This episode dives into Japan’s Fugo campaign, which launched over 9,000 incendiary balloon bombs toward North America between late 1944 and mid-1945, predating modern ballistic missiles by more than a decade.

The discussion explains the strategic desperation after the Doolittle Raid, the discovery of the jet stream, and the ingenious mechanical ballast system that let an unpowered balloon surf an atmospheric conveyor belt for thousands of miles. It also covers the American firefighting and decontamination defenses, the masterful media blackout, and the tragic deaths at Bly, Oregon, the only civilian fatalities by enemy action in the contiguous United States.

• How a cast aluminum wheel and aneroid barometers automatically managed altitude
• The washi paper balloons assembled by mobilized teenage girls in sumo halls
• The balloon that short-circuited power to a Manhattan Project reactor at Hanford
• The censorship campaign that denied Japan any feedback on its weapon
• The Bly tragedy and the 1987 gesture of peace from the women who built them