In a decision that has sent shockwaves through Taipei, Washington, and Beijing simultaneously, the United States placed a $14 billion arms sale to Taiwan on hold to make sure the US military has sufficient munitions stocks for the war with Iran. Acting Navy Secretary Hung Cao provided the update to lawmakers during a Senate Appropriations Subcommittee on Defense hearing, a week after the weapons sale took centre stage in talks between US President Donald Trump and Chinese leader Xi Jinping in Beijing. The timing — days after Trump's May 13-15 state visit to China — has ignited a fierce debate in Washington over whether the official justification tells the full story.
The Official Reason: Iran War Munitions Needs
"Right now, we're doing a pause in order to make sure we have the munitions we need for Epic Fury — which we have plenty," Cao told the Senate Appropriations Subcommittee on Defense. The reference to Operation Epic Fury — the US-Israeli offensive campaign against Iran — is technically coherent. Senior American officials said the decision reflects growing concerns over defence readiness and the rapid depletion of advanced interceptor stockpiles during recent military operations in the Middle East. The proposed Taiwan package includes advanced missile defence systems and interceptors considered critical to deterring growing military pressure from China — precisely the category of munitions being consumed at pace in the Strait of Hormuz theatre. Diverting those systems to Taiwan while simultaneously fighting Iran would leave US Central Command with thinner buffers than military planners consider prudent.
However, the timeline raises questions. Three days after Secretary of Defense Hegseth told the same committee on May 12 that the availability of munitions was a non-issue, Trump said the arms deal could be "a very good negotiating chip" in dealing with China. In other words: the Pentagon's top civilian said there was no munitions problem on May 12, and then the Navy said there was enough of a munitions concern to pause the Taiwan sale on May 21. The intervening event was Trump's visit to Beijing. For authoritative analysis of the Taiwan Relations Act — the US law that obligates Washington to provide Taiwan with defensive arms — the US Congress official records maintain the full legislative text and amendment history of the Act.
Trump's Mixed Signals: "Bargaining Chip" vs. Military Necessity
The sharpest contradiction in the entire episode is between the Acting Navy Secretary's testimony and the President's own public statements. Trump, who has confirmed that he discussed the weapons deal with Xi at their recent meeting, said last week in an interview with Fox News: "I haven't approved it yet. We're going to see what happens. I may do it; I may not do it." He went further, framing the package explicitly as a diplomatic instrument: Trump said the matter had been discussed "in great detail" with Chinese President Xi Jinping and added that he would "make a determination over the next fairly short period."
The use of arms sales to a third country as a negotiating chip with China is, as analysts have noted, a significant departure from decades of established US policy. The United States has traditionally followed a policy of not consulting Beijing on arms sales to Taiwan — a principle designed precisely to prevent China from having a veto over US security commitments to Taipei. By publicly discussing the sale with Xi in Beijing — and then pausing it days later — Trump has effectively granted Beijing the consultative role that US policy has historically denied it.
What Xi Said in Beijing — And Why It Matters
Xi is reported to have issued a strong warning at the meeting with Trump, telling him that the "Taiwan question" is the most important issue in US-China relations and that the two nations could "have clashes and even conflicts" if the issue isn't handled properly. Beijing pressed Trump over Taiwan during his visit, urging the United States to exercise "extra caution" over support for the island, which China regards as a breakaway province, saying it could result in clashes and potential conflict that could place the entire Sino-US relationship "in great jeopardy." A Chinese Foreign Ministry spokesperson confirmed after the pause was announced that "China's opposition to the US arms sale to China's Taiwan region is consistent, clear-cut and resolute." Beijing's position was unchanged — but Washington's behaviour had shifted in a direction Beijing wanted.
Taiwan Was Not Informed — And Is Watching Closely
Perhaps the most diplomatically significant detail in the entire episode is that Taipei was kept in the dark. Taiwan said it had not been informed the Pentagon had put the $14 billion arms package on hold. Taiwan's Presidential Office took note of the update, announced Thursday by Acting Navy Secretary Hung Cao, but had not received information about any change to the deal. That Taiwan's government learned of a pause to its own arms sale from a US Senate hearing rather than from a direct communication from Washington speaks to a breakdown in the transparency that Taiwan-US defence relations depend on.
The delay has sparked concern among US lawmakers and regional allies, many of whom see arms sales to Taiwan as central to maintaining balance in the Indo-Pacific. Under the longstanding Taiwan Relations Act, the United States is obligated to help Taiwan maintain sufficient self-defence capabilities. Defence analysts say the temporary halt highlights the growing challenge facing Washington as it attempts to manage simultaneous security crises across multiple regions while preserving military readiness for a potential confrontation involving China.
The Bigger Picture: Three Wars, One Munitions Supply Chain
Whether the pause is primarily military or primarily diplomatic, it illuminates a structural problem that defence planners have been warning about for years: the United States is simultaneously engaged in an active kinetic conflict in the Middle East (Iran), providing substantial materiel support to Ukraine, and committed by law to arm Taiwan against a growing Chinese military threat. The munitions supply chain that was designed for one major contingency is being asked to support three. The Taiwan arms pause — whatever its true motivation — is a visible symptom of that overextension. If it is diplomatic, it represents a historic erosion of the US commitment to Taiwan. If it is genuinely military, it represents a strategic vulnerability that Beijing, Moscow, and Tehran are certainly noting and may be tempted to test simultaneously.