It was the first strike that US forces have carried out in Iraq since February.
At least four people have died in the US airstrike in Iraq. According to a US defense official source, the strike was to defend against fighters who were planning to launch drones that the US considered to be a threat to its own forces and the forces of its allies.
According to Iraqi sources, at least four people were killed in the attack on the base located in Babylon province, but the number of victims is expected to rise.
It was the first strike that US forces have carried out in Iraq since February.