The movie does a good job of exposing just how corrupt the U.S. military is beyond the problems inherent to a large bureaucracy. Hopefully it will discourage other idealistic white men from joining the military.
The term 'friendly fire' doesn't do justice to the way he died. Murdered is more accurate. Then the coverup and the use of the death to promote the war. And then when the truth came out very selective and very limited punishment.
The movies shows just how incredibly political and stupid the conduct of the war in Afghanistan is. Special forces are put into impossible situations because the general methods employed are not adequate; too few troops covering too much territory, confused mission, officers interested in achieving 'combat experience' only for purposes of promotion.
I don't think many people, including 'experts' at the Pentagon and State Department, understand just who the other side is. The main opposition is Pashtun. They are not Arabs. The are Indo-Europeans. Their traditional enemies are the Asian tribes, remnants of the Mongol occupation, who constituted the Northern Alliance. The Afghan army is now overwhelmingly made up of these Asians like Tajiks and Uzbeks.
When you see photographs of the Taliban Pashtun fighters, gaunt with full beards, you're reminded of the Confederacy. So you have mostly white Americans, largely from the American South, being sent to fight other Indo-Europeans who, in their own way, are attempting to gain the freedom to manage their society as they see fit with their own 'peculiar institutions'.
The Pashtuns have been described as among the most non-materialistic people in the world. So why do they fight? Why did the Confederates?
At one point the U.S. government paid the Taliban $1 billion p.a. to stop the cultivation of opium. The Taliban did just that. Heroin supplies dried up in Europe and Russia. Now that the evil Taliban is out of power Afghanistan produces a majority of the world's heroin (or at least the precursor to heroin).
(What did the Taliban do with the $1 B? Religious schools, clinics, farm machinery, extra wives, irrigation gates, extra goats, guns, designer turbans, etc. If only they had built yeshivas all would be well.)
The early Taliban were seminary students who took up guns and took over the country. It's as if all the male students at bible colleges in the U.S. commandeered tanks and artillery and took over D.C. Maybe that's what really troubles our corrupt elite.