I did read a lot of books which "Bright Heads" of US political scene wrote in nineties-eighties.
US royally f..king up its ally Japan is the biggest reason why Japan did not become a counterweight to China.
Basically, US assured China's victory when it both alienated, and weakened the Japan.
That both lead to Japan putting big money into China (Japan is China's biggest foreign investor,) and it becoming rather passive to US calls to do anything as about China after Washington finally got hit with understanding of its blunder.