trump gave the Taliban everything , there was no room for renegotiating the deal. Biden was lucky they allowed him to postpone the exit date a few months. When he took office he made it a priority to get all American civilians out of there long before the exit date , even offering free transportation . Some chose to stay , everyone has their reasons for what they do. The military loses were much less than our exit from Vietnam. Getting in a country is a lot easier than getting out of one. That's another reason trump put it on Biden's early docket. Like I said he set him up good.