The United States and its allies staged 17 airstrikes against ISIS in Iraq and Syria Tuesday, the coalition leading the operations said in a statement released Wednesday. The Combined Joint Task Force said 15 strikes near five Iraqi cities hit seven of the militant group's tactical units. Nine of the strikes were centered near Ramadi, where they destroyed two buildings, 10 fighting positions, an improvised explosive device and a tunnel used by ISIS, it added. In Syria, two airstrikes near Ayn Isa hit an ISIS tactical unit and destroyed two of the group's fighting positions, the statement said.