According to the US military, the IS rocket attack on their Iraqi base chemicals. According to BBC News, US air-force base near Mosul just do away with this IS rocket

attack. He said there were no casualties in the attack. ISO is the first attack on US-led forces. The Pentagon said in a statement, according to Iraq during the mid-afternoon on 20 September  attacks targeting US air base. There also, the attack did not affect the mission participants. Faced with such a situation, our soldiers have adequate training and equipment.