Difference between black and red flags in Iran

The only difference is that the symbols are different. The difference between the black flag and the red flag of Iran is that the black flag stands for mourning and the red flag stands for vengeance, the black flag, not only as a symbol, but also as a motivation, calling the Iranian people to unite and fight for the dignity and glory of the country, and the red flag symbolizes the cries of vengeance and tense warnings.