As the end of the article indicates the United States appear to consider international norms, laws and whatever only as disadvantageous to others, but never as a constraint to themselves.
I wonder why any party still enters any kind of contract with a entity that does so blatantly and obviously does not feel bound by anything even if it itself stated so with ink and seal.
I myself consider the United States as a useless ally (even a highly troublesome). As mentioned before, the main utility of NATO is in my opinion to keep European powers and the United States allied in an effort to keep them from becoming over rivals. Cooperation yields better fruits than confrontation, but I would never rely on the United states meeting some once agreed-upon obligations. Ever.