1945, U.S. pilots dropped leaflets over Japan warning citizens of coming destruction. The leaflets warned Japanese citizens that their government was leading them to death and that the US government had no wish to kill civilians.​​​​​​​

Leaflet No. 2101 reads, "This is a message from the President of the United States, Harry Truman, to the people of Japan. The only way to avoid complete destruction of your family, home, economy, and nation is to immediately cease all military activities and surrender unconditionally. If you continue your futile resistance, we will be forced to bring unnecessary destruction upon the nation. This damage will be far greater than those received by Germany."