welcome back, everybody. we are learning new details today from the pentagon on the rapidly changing situation in afghanistan including now getting u.s. troops out of the country. with three days to go until president biden's august 31st deadline, pentagon press secretary john kirby confirms u.s. troops at the kabul airport have begin retrograde. >> reporter: have u.s. troops begun retrograde, withdrawal from the airport? >> we have begun retrograding. >> reporter: can you sage anything about the number who have left? >> i cannot. >> joining me tim kuld owe, former captain who served in iraq and afghanistan. and eric edgeton. tim, you told my colleagues a few days ago you were glad to see operations in afghanistan coming to an end, but what are your thoughts on how it is coming to an end and what does the retrograde mean for an