A day prior, Chinese President Xi Jinping told his US counterpart Joe Biden that "one who plays with fire will certainly burn himself” - undoubtedly a warning to Washington not to test China's patience by violating Chinese sovereignty over Taiwan, a territory Beijing sees as a Chinese province in rebellion. The US acceded to that position in 1979, when it switched its recognition of the legitimate Chinese government from Taipei to Beijing.
'Strategic Ambiguity'
That statement was a violation of the US’ longstanding policy of “strategic ambiguity” on the question of defending Taiwan from Mainland China. The policy is calculated to maintain the status quo, which is that Taiwan neither feels confident enough to declare independence nor grows close enough to China to reunite with it. Since Biden became president in 2021, he has tripped several times over the same rule, and his leading diplomats have had to walk back his claims.