The US Air Force for the first time deployed a B-52 bomber against the Islamic State, the Pentagon said Wednesday as it ramps up a 20-month campaign to smash the jihadists. The bombing mission, in which a hulking B-52 destroyed a weapons storage facility south of Mosul, comes the same week that Defense Secretary Ash Carter visited Baghdad and announced extra US troops, cash and equipment for the anti-IS campaign in Iraq. In other signs of an increasing tempo, US commandos working with Kurdish troops conducted a raid targeting a senior IS group figure and the Pentagon said it has changed how air strikes risking civilian deaths are approved.
