Iran Press/America: Mark Esper made the statement on Wednesday night following Iran's attack on US forces in Ain al-Assad airbase.
In the early hours of January 8, the IRGC's aerospace unit launched a successful attack against US forces in Ain al-Assad airbase in western Iraq and another in Erbil, in the north of the country.
The attack came in response to a US terrorist drone strike days earlier that martyred one of Iran's top Generals, the former Commander of IRGC's elite Quds Force, Lieutenant General Qasem Soleimani.
The Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei described the attack as a “slap in the face” and Iran's Foreign Minister Mohammad Javad Zarif called it a "proportionate measure" which came "in self-defense".
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