alistair Biden can’t reverse geo-political policy, particularly one as complex as this, just as easily as he can domestic policy. Especially when there are regional players such as China who are now heavily invested in the Taliban. The timing argument is also moot as the agreed withdrawal from Afghanistan by the US was 9 months from Feb 29th 2020, so if anything they already overstayed by almost a year. There are regional warlords who’ve received millions of dollars in contributions now shifting to take back their areas, the Taliban didn’t roll into areas on tanks taking over cities, the security forces simply switch sides, that’s how things happen so fast. The media, not surprisingly, are painting it like a massive invasion but the truth on the ground is much different.
