The United States establishes diplomatic relations with the PRC, de-recognises the ROC and terminates the 1954 Mutual Defense Treaty, while stating that it acknowledges the Chinese position that there is one China and Taiwan is part of it.
Conflict coverage · Taiwan Strait
US recognition switches to Beijing; the defence treaty ends
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Why it mattersRecognition of Beijing removed Taiwan's formal security guarantee and set up the improvised replacement that has governed ever since. The precise wording — "acknowledges" rather than "accepts" — remains actively disputed and is the hinge of most legal argument about US policy.
Confidence: HighSources: Taiwan Relations Act and US statutory framework · Established historical recordMethodologyCorrections
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1 record that this event names, or that name it. Every one is an explicit reference in a published record — nothing here is inferred from subject matter.
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This is one entry in the Taiwan Strait timeline. The full Key Events surface carries every dated turning point with its filters and its essential subset, and this event in place shows what came before and after it. How Vigil grades, dates and sources its claims is set out in the methodology.