Isn't that a joke!? Until the citizens of the US grow up and actually do what the propaganda talks of - "government of the people, by the people, for the people" and begin to hold their ongoing line of war criminal/terrorist presidents/administrations to account, there will be no lessons learned.
There have never been any lessons learned in over 200 years. What makes anyone think this will change?
What came while the illegal invasion of Afghanistan was going on? Surprise, surprise - another illegal invasion. Guess where.