>> dina from national public radio. following on the question and your point about more outcome a couple months ago we heard isis had decreed truck drivers were not to pick up fighters along the road because they were concerned that lost people were deserting. are you seeing any uptick in desertion from fighters there? mr. glaser: -- gen. allen: we are. reporting is sketchy. but the sense of disillusionment with the reason that they came to begin with, the sense of being empowered from wherever their point of origin was, the sense of joining a holy cause to support the so-called caliphate is often dispelled very quickly. so we have heard about desertions. we've heard foreign fighters who talk about disaffection in ranks. we've heard a significant report about daesh summarily executing elements of the foreign fighter community that display any willingness to take a path apart from the caliph, the caliphate or daesh internal regulations. the sense that they are a monolith, juggernaut inevitable , all of that is far from t