conversation with erdogan late last night. the islamic state is not defeated in syria or anywhere else for that matter. as the ap puts it quote despite losing its caliphate, tens of thousands of isis fighters remain. tens of thousands of isis fighters remain on the battlefield. the group continues to carry out insurgent attacks and could else move back into the territory it once had once american forces withdraw. the nonpartisan public policy research group the american enterprise institute notes isis still remains in the middle east and has developed stronger foot holds in africa. let's bring in now the author of that report senior analyst at the critical threads project at the american enterprise institute emily astell.