The US Secretary of Defense has said that the American military forces and its coalition allies need to stay in Iraq, even after the terrorist group ISIS has been defeated. Ashton Carter said terrorist groups were headed towards a lasting defeat but the US-led coalition, which has purportedly been striking Islamic State positions in Iraq since 2014, had to stay and keep training local security forces to ensure the group does not rise again Press TV reports: “But there will still be much more to do after that to make sure that, once defeated, ISIL stays defeated,” the Pentagon chief said.