Timely piece in the Economist:

Three decades after the fall of the Soviet Union, the unipolar moment is over. In China, America faces a vast rival that confidently aspires to be number one. Business ties and profits, which used to cement the relationship, have become one more matter to fight over. China and America desperately need to create rules to help manage the rapidly evolving era of superpower competition. Just now, both see rules as things to break.