Isis regroup and move frontier of war to the digital realm

Far from being defeated, Islamic State continue to battle on several fronts, write Anne-Marie Slaughter and Asha C Castleberry

In December 2018, US president Donald Trump declared victory over the Islamic State (Isis), tweeting that “Isis is largely defeated and other local countries, including Turkey, should be able to easily take care of whatever remains. We’re coming home!”