The failure is not military, it's political - archbishoppublished at 13:07 British Summer Time 18 August 2021
Down the corridor in the House of Lords, peers are also debating the situation in Afghanistan. They are still able to contribute by video link, so the chamber is not quite as full as the Commons.
One former head of the judiciary in England and Wales says the UK must not abandon women judges in Afghanistan.
Lord Judge, a former Lord Chief Justice, says there are just under 300 female judges and magistrates in Afghanistan who are now in peril.
He tells peers: "Each one of them had the temerity, from the point of view of the Taliban the sinful effrontery, to sit in open public courts, contrary to sharia law, to sit in judgement over men, to give judgements against men, to pass sentence on men and to imprison Taliban terrorists and murderers and rapists.
"All those men are now free and they will dress up their revenge as a debt they owe to their God.
"We must not desert these women, we must not desert these allies who we have left behind," he says.
The peers have also heard from the Archbishop of Canterbury, The Most Reverend Justin Welby, who praises the courage and sacrifice of people who have served in Afghanistan over the past 20 years.
"I remember a cathedral full for the funeral of a soldier, family and many colleagues silent in dignity, some wounded, mourning their loss," he recalls.
"The failure we face today is not military or diplomatic, they did all they could. It is political."