It's written in the Bible. The moon will turn red as blood, so he [Jesus] is coming back very soon.
Something very bad is about to happen to our planet.
But another person, who probably lived or lived in the Middle East, gave another explanation:
Sandstorm, the same thing happened in Baghdad in 2003. We thought Saddam had launched a chemical attack.
Sandstorm clouds often occur in Syria and Iraq, Iran, Saudi Arabia and Yemen, but generally do not reach a tone as reddish as what you see in the video. Even if it's something natural, it was really scary.