"We need an independent commission to look at what happened in Afghanistan"
These days finding a truly independent and impartial group of people that both sides accept is very unlikely, bordering on impossible. I'm getting really jaded and depressed these days, determining the truth is quite the challenge no matter what the issue is. It's like the special prosecutor to investigate Russian Collusion or the commission to investigate the Jan 6 'Insurrection', everything is politicized. TBH, I can't think of anyone on the Left that I would trust to be honest and unbiased, nor on the Right either for that matter.
So, I think we've got to follow the news and form our own opinions. Trouble is, too many of us have already formed our own conclusions. I would like more information about your 6 questions though, plus what was happening with the Afghan army.