What the Iran War Teaches China About Invading Taiwan, And What It Doesn't
US military performance in the Middle East stunned analysts and should give Beijing pause. But the conflict also exposed vulnerabilities that China is already studying.
Six weeks into the 2026 Iran war, a debate has erupted among military strategists over what the conflict reveals about a potential US-China confrontation over Taiwan. Writing in Foreign Affairs, Carter Malkasian of the National War College argues that American tactical successes in Iran were "unexpectedly effective" and should force Beijing to reassess its assumptions about a Taiwan campaign. But the picture is far more complex, and China is watching every detail.
Before the war, Iran possessed over 2,500 ballistic missiles and thousands of attack drones. Former CENTCOM commander General Frank McKenzie had warned these would "overwhelm air and missile defenses" and inflict "many thousands of casualties." In reality, US and Israeli forces parried Iranian attacks with stunning efficiency. By March 10, Iranian ballistic missile strikes had fallen 90% from their first-day levels, and drone attacks declined 83%. The CSIS estimated that US forces fired 786 JASSMs and 319 Tomahawk cruise missiles in the first six days alone, "several years of production in both cases."
The Taiwan calculus shifts
The implications for Taiwan are direct. Until this conflict, most US defense analysts assumed China could use long-range strikes to severely impair American air and naval operations in the western Pacific. Malkasian argues this "basic assumption must be reassessed." The US demonstrated it can "front-load violence on a scale some analysts had stopped imagining, and now Beijing has to plan around that possibility."
How does the Iran conflict relate to Taiwan?
Taiwan is a self-governing democracy of 23 million people that China claims as its territory. President Xi Jinping has stated that "reunification" with Taiwan is a core objective and has directed the People's Liberation Army to be prepared for an invasion by 2027. The United States maintains an unofficial defense relationship with Taiwan and has sold it billions in weapons, though its commitment to defend the island militarily remains deliberately ambiguous, a policy known as strategic ambiguity. Any conflict over Taiwan would likely involve massive Chinese missile barrages against US bases in Japan, Guam, and potentially the US homeland, making the air and missile defense lessons from Iran directly relevant.
Equally significant was the failure of Chinese-made defense systems. The HQ-9B missile system and JY-27A radar, both Chinese exports, "comprehensively failed in the face of American assaults" in Iran, and in Venezuela, where a similar pattern played out. As Newsweek reported, a US military source involved in the Venezuela operation warned: "Be careful depending on China, Russia and Iran for security." This undermines China's arms export credibility and raises uncomfortable questions about whether PLA systems would perform any better.
What Iran revealed about American weaknesses
But the war also exposed critical US vulnerabilities. Despite devastating Iran's conventional military, American and Israeli forces could not prevent the closure of the Strait of Hormuz. Iran's antiship missiles, drones, and naval mines proved effective enough to shut down the world's most important maritime chokepoint, a direct lesson for Taiwan, where antiship capabilities are central to both China's offensive plans and Taiwan's defensive strategy.
The South China Morning Post quoted Jacob Stokes of CNAS: "The US military really does remain operationally exquisite, especially in joint operations... But how long can they sustain it?" The war depleted US Tomahawk and JASSM stockpiles representing years of production. THAAD missile defense components were transferred from South Korea to the Middle East. Over 2,200 Marines and Navy sailors were redeployed from Japan.
China has also observed a political dimension. Trump launched strikes on Iran without consulting NATO allies or key Asian partners, raising concerns in Tokyo, Seoul, and Canberra about what unilateral decision-making might look like in a Taiwan scenario. As the Asia Times noted, Taiwan is now watching the Iran war as "a real-time indicator of how the US operates under strategic pressure."
China's response: accelerate, don't retreat
China's reaction has been multifaceted. The March 2026 National People's Congress announced a 7% defense spending increase. CNN reported that China is secretly expanding nuclear weapons infrastructure at facilities in Sichuan province, with over 600 buildings demolished to make way for new construction. The PLA Navy published a November 2025 article on how decapitation strikes, of the kind that killed Khamenei, could counter Taiwan's "porcupine" defense strategy.
On April 10, Xi Jinping met with KMT opposition leader Cheng Li-wun in Beijing, the first such meeting in a decade, warning that China will "absolutely not tolerate" Taiwan independence. This suggests Beijing may be accelerating political warfare and subversion efforts alongside military preparations.
Malkasian argues Xi may "decide to postpone aggression until his military can build enough ballistic missiles, hypersonic missiles, and drones to overwhelm better-than-expected US and allied defenses." But the Iran war has also shown Xi that delay carries its own risk: the US may strike earlier and harder than expected, compressing China's window of opportunity. The lesson from Iran is not simply that American power is formidable. It is that the calculus of conflict is far more unpredictable than any side anticipates.