Previously posted at: https://www.history.com/this-day-in-history/japanese-bomb-u-s-mainland
On this day in 1942, a Japanese floatplane drops incendiary bombs on an Oregon state forest—the first and only air attack on the U.S. mainland in the war.
Launching from the Japanese sub I-25, Nobuo Fujita piloted his light aircraft over the state of Oregon and firebombed Mount Emily, alighting a state forest—and ensuring his place in the history books as the only man to ever bomb the continental United States. The president immediately called for a news blackout for the sake of morale. No long-term damage was done, and Fujita eventually went home to train navy pilots for the rest of the war.