“Let it be a warning. If Iran attacks Americans or American property, then those 52 Iranian targets that we took aim ... and Iran itself will receive a very quick and very strong blow. The US does not want more threats! ”He wrote on Twitter.

.... targeted 52 Iranian sites (representing the 52 American hostages taken by Iran many years ago), some at a very high level & important to Iran & the Iranian culture, and those targets, and Iran itself, WILL BE HIT VERY FAST AND VERY HARD. The USA wants no more threats!

- Donald J. Trump (@realDonaldTrump) January 4, 2020

Trump had previously commented on the death of Iran’s IRGC general, Kassem Suleimani, as a result of a United States operation in Iraq. According to him, the military leader had a direct or indirect relation to the deaths of millions of people.

In turn, the Iranian supreme leader Ali Khamenei threatened to avenge the murder of Suleymani.

On January 3, an Iranian general was killed in a missile strike in the vicinity of Baghdad's international airport.