“Twelve U.S. warplanes, including a B-52 Stratofortress bomber and A-10 Thunderbolts, carried out a massive airstrike Monday on a suspected chemical weapons production complex in the ISIS-held stronghold of Mosul, Iraq, the commander of U.S. Central Command air forces said Tuesday.”
Source: Massive US Airstrike Hits Suspected ISIS Chemical Weapons Factory | Military.com