as we mentioned the bombing comes just a week after a deadly hotel siege in kabul. the taliban also claiming responsibility for that. but what might be behind a high profile attacks our colleague spoke earlier with cnn s military analyst lieutenant rick francona. much of it is retaliation for the increased coalition air strikes. that are being conducted throughout the country. normally in the winter, we see a lull in activity. because it s a very difficult ter train conduct military operati operation. so what s we re seeing this year is much higher operations tempo. the united states has just deployed a-10 aircraft to beef up that air-to-ground capability, and they re going to try to take the fight to the taliban. these aircraft were supposed to go to the middle east to fight isis, but given the success in iraq and syria, now they ve moved it there. this follows president trump s stated goals of increasing operations against the taliban.