American action to kill Osama violated the foundations of the International Order (as the respect the sovereignty of Pakistan, warranty of the human life, prohibition of the torture and of unarmed enemies' summary executions). The government from the USA didn't practice a legitimate State action . Actually Obama and their soldiers acted as if they were an immense global gang of criminals.
The only thing that justified the American criminal action in Pakistan was the faith of Obama and their subordinates that the USA are a special country, a nation above the common law that it forces the other people, a State capable to create and to execute his own Law anywhere in the planet.
The History there this to prove that every special contry stops being special when it loses a great war. The USA already behave like Nazi Reich and it will have the same destiny. We won't lament the fall of this empire that intends to elevate above the other civilized nations.