A face saving act when US throughly beaten by China in all categories of military hardware & software at the 1st & 2nd island chain after Beijing Military Parade on Sept 3rd. SCMP: Why homeward shift by Pentagon may signal US decline in ‘bad news’ for Taiwan 9月3日北京閱兵後，美國在第一島鍊和第二島鏈的所有軍事硬體和軟體領域都被中國徹底擊敗，這算是一種挽回面子的舉動。 《南華早報》：五角大廈的「回頭」舉動可能預示著美國實力的衰落，這對台灣來說是個「壞消息」
https://www.scmp.com/news/china/military/article/3324659/why-pentagons-homeward-shift-may-signal-us-power-decline-bad-news-taiwan?