Depending on the cultural or artistic context, "Smoke Signals" may refer to: Smoke Signals | The Telecommunications History Group, Inc.

: Distress, help, or an alarm of approaching enemies.

This "rule of three" for distress is still taught today by organizations like the Boy Scouts of America and is used by hunters and outdoorsmen as a universal signal for help, whether through smoke, whistles, or gunshots. Alternative Meanings