US Secretary of State Mike Pompeo vowed Monday that the Islamic State group would not be allowed to regroup as he headed to the Middle East following President Donald Trump’s surprise decision to pull US troops from Syria. Leaving on a trip to eight Arab capitals, Pompeo told reporters he would show that “the United States is still committed to all the missions that we’ve signed up for with them over the past two years.” His advisers have since been walking back his timeline, with national security adviser John Bolton saying Monday in Jerusalem that the United States would verify that the group is truly defeated before withdrawing.