The attacks prompted the Japanese to seek a way to bring the war to the United States. It took two years before they found the right instrument: a new weapon, the balloon bomb. From November of 1944 ...

During World War II, this gave the former Imperial Japanese Army the idea of attacking the far-away U.S. mainland with bombs that were suspended from balloons. Called “Fu-Go” incendiary ...

the government considers it a "pre-modern method" used by the Imperial Japanese Army in World War II, when it used balloons as intercontinental weapons systems to send bombs over great distances.

Japan went to great effort in WWII getting project "Fu-Go" off the ground. The grand plan was to create balloon bombs to terrorise American citizens and divert US military resources to a domestic ...