Red smoke is a visual phenomenon that occurs when certain materials are burned or when specific chemicals are released into the air. It is often produced during military exercises, where colored smoke is used for signaling or marking positions. The red color typically comes from dyes added to the smoke-producing agents. In addition to military applications, red smoke can also be seen in various events, such as concerts or festivals, where it is used for dramatic effects. The smoke can be created using smoke grenades or pyrotechnics, which release colored smoke for visual impact and entertainment purposes.