We had and could have have continued with a NATO force with a small complement of peacekeepers and forces to ensure a much smoother exit than the one we are currently witnessing now!
Not so sure about that. In July, Biden, had the choice of abiding by the deal first made by Trump for US and NATO allies to withdraw this summer - Biden extended US withdrawal by 4 months to Aug 31 -or confronting an anticipated expansion in Taliban attacks once Aug 31 passed if US went back on this. The Taliban had been growing in strength since the Trump Administration’s deal with Taliban in Doha in Feb 20.
This article says:
“According to the Washington Post, a series of negotiated surrenders began across Afghanistan in early 2020, shortly after Trump announced the US would be leaving: “The deals…were often described by Afghan officials as cease-fires, but Taliban leaders were in fact offering money in exchange for government forces to hand over their weapons, according to an Afghan officer and a U.S. official. Over the next year and a half, the meetings advanced to the district level and then rapidly on to provincial capitals, culminating in a breathtaking series of negotiated surrenders by government forces, according to interviews with more than a dozen Afghan officers, police, special operations troops and other soldiers.”
However, a better withdrawal at the end may have been possible especially US and U.K. expediting visa’s quicker for Afghans that had worked with them, France began theirs in May.