for the livelihoods of 5,000 americans at the air field. yet they have to decide how they manage or exist alongside isis-k. what does that relationship look like going forward? >> it's a complicated relationship. a at the end of the day, they have competing visions for the region. >> break that down for me. is that because you believe the taliban is internally focused and isis-k is externally focused? >> isis-k wants to build their new caliphate. again, the k stands for korizan. it's a region. it's not the just the borders of afghanistan. it's an entire region. keep in mind that isis-k and the taliban compete for fighters. isis-k being able to pay a lot more for the better fighters. so isis-k is more sophisticated