US officials stressed on Thursday that Washington’s policy towards Taiwan had not changed, after President Joe Biden said in an interview that his administration would “respond” if the island were invaded. Biden’s comment, in an interview with ABC’s George Stephanopoulos about Afghanistan, seemed a departure from Washington’s long-standing policy of “ strategic ambiguity ”, though analysts considered it a misstatement. The US has long refrained from explicitly stating whether it would intervene militarily if China sought to take Taiwan by force – a policy of deliberate ambiguity that proponents say deters military action by Beijing while preserving Washington’s relations on both sides of the strait. But under questioning from Stephanopoulos about whether Taiwan could count on the US after its chaotic withdrawal from Afghanistan, Biden’s response appeared unambiguous. White House rebuts claims that Afghanistan withdrawal should worry Taiwan “We made a sacred commitment to Article Five that if in fact anyone were to invade or take action against our Nato allies, we would respond,” he said in the interview, which was broadcast on Thursday. “Same with Japan, same with South Korea, same with Taiwan.” The North Atlantic Treaty Organisation’s Article Five dictates that each member nation should consider an attack against any other alliance member as an attack against themselves. The US ended its diplomatic relations with Taiwan in 1979 when it transferred recognition to mainland China and no such formal US-Taiwan military pact exists. The US, however, is required by law to ensure that Taiwan is able to defend itself. Asked about Biden’s comments, a State Department representative said: “Our policy with respect to Taiwan has not changed.” “The US defence relationship with Taiwan is guided by the Taiwan Relations Act (TRA), as it has been for the past 40 years, and is based on an assessment of Taiwan’s defence needs and the threat posed by the PRC,” said the official, referring to legislation that codifies relations between Washington and Taipei. And asked on Thursday if the administration would consider abandoning the strategic-ambiguity policy, State Department spokesman Ned Price gave no indication that the administration planned to escalate its support of Taiwan beyond existing protocols. “We will continue to support a peaceful resolution of cross-strait relations consistent with the wishes and best interests of the Taiwan people,” Price said at a regular briefing. Bonnie Glaser, director of the Asia programme at the German Marshall Fund of the United States, said Biden’s comments had “conflated” US policies toward its treaty allies and toward Taiwan. “But he was correct in saying that the US has upheld its commitments,” she added. “That was the main point. He was just a bit sloppy in his answer.” Beijing prepares to build airport on reclaimed land near Taiwan But in Beijing, sensitivities around the Taiwan issue – recently stoked by the Biden administration’s approval of an arms sale to the island – are such that even slip-ups by US politicians can unleash fiery responses from state media. After an erroneous tweet this week by Senator John Cornyn, Republican of Texas, saying the US had 30,000 troops stationed in Taiwan, the editor-in-chief of the Global Times newspaper suggested it was a deliberate attempt to test Beijing’s resolve. “My answer to him is war,” Hu Xijin said on Twitter. “If it is true that the US has 30,000, or less than that number, soldiers stationed on the Taiwan island, Chinese military forces will immediately launch a war to eliminate and expel the US soldiers.” Cornyn has since deleted the tweet . The first six months of Biden’s presidency have seen some escalation in Washington’s overt support for Taiwan, including the issuance of new guidelines to encourage direct engagement between US and Taiwanese officials. The administration has also pledged to invite Taiwan to participate in a “summit for democracy” later this year. Beijing has bristled at the warming of US-Taiwan ties, and this week initiated extensive air and naval exercises near the island that Chinese military officials cast as a response to repeated provocations and “serious wrong signals” by Washington and Taipei. Speaking on Thursday, Price called on Beijing to cease its “military, diplomatic, economic pressure against Taiwan, and instead to engage in meaningful dialogue”. Beijing views Taiwan as a renegade province to be ultimately reunited with the mainland – if necessary by force. Analysts remain divided about when or whether Beijing would defy pressure from Western countries with an attack on Taiwan. A top US admiral warned Congress in March that Beijing could take action against the island “in the next six years”.