formally ended the combat phase of the war in 2014, christina strange learned her fiance and father of their daughter ariana, sergeant first class ramon morris, had been killed in an i.e.d. explosion. now, over six years later, president biden promising a complete u.s. withdrawal by september 11 are you surprised we have reached this moment do you really believe it >> it's a relief for sure to have an end date and to bring our soldiers home safely it is kind of surreal though it's been going on for a long time. >> reporter: president biden will miss tomorrow's withdrawal deadline negotiated between the trump white house and the taliban that would have ended the war virtually within its first 100 days the september 11th date he now promises both symbolic and, he believes, more practical. a decision making some military leaders uneasy. >> those are my combat boots from afghanistan still with the dust on them. commander, now retired, admiral james stavridis led the afghanistan mission for a time >> i think it's today not only a highly organized taliban, but it's also al qaeda and, sadly, new to the scene the islamic state. the potential of a re