BBC News
October 22, 2021
President Joe Biden said the US would defend Taiwan if China attacked, in an apparent departure from a long-held US foreign policy position.
But a White House spokesman later told some US media outlets that his remarks did not signify a change in policy.
The US has a law which requires it to help Taiwan defend itself.
But it pursues a policy of “strategic ambiguity,” where it is deliberately vague about what it would actually do if China were to attack Taiwan.