To give Biden a little leeway, he was set up for this withdrawal by his predecessor and had delayed it some, but he couldn’t get out of it easily. However, the actual withdrawal doesn’t seem to have been planned in any evident manner, and though the details should have been handled by the generals, the ultimate responsibility does rest with the top man. That said, the Uk (and others?) don’t appear to have made any objections and just seem to have gone along with the shockingly negligent approach undertaken by the yanks.