In the lead-up to an international court ruling on China's claims in the South China Sea this month, American officials talked about rallying a coalition to impose "terrible" costs to Beijing's reputation if it flouted the court's decision.

But just two weeks after the July 12 announcement by the Permanent Court of Arbitration in The Hague — which, at least on paper, appeared to be a humiliating defeat for China — the U.S. strategy appears to be unraveling and the court's ruling is in danger of becoming irrelevant.

Earlier this year, U.S. officials spoke repeatedly of the need for countries in the Asia-Pacific region and elsewhere, including the European Union, to make it clear that the decision of the court should be binding.