Nancy Pelosi spent less than twenty-four hours in Taiwan this week. The political consequences of those hours may last considerably longer.
The Speaker of the US House of Representatives arrived in Taipei on Tuesday despite repeated warnings from Beijing that her visit would provoke a serious response. She met President Tsai Ing-wen, addressed Taiwanese officials and presented the trip as a demonstration that the United States would not abandon its commitment to Taiwan’s democracy. China responded by announcing enormous military exercises around the island. Chinese aircraft and naval vessels operated around Taiwan, and the People’s Liberation Army fired ballistic missiles during exercises that effectively surrounded the island from several directions. Some missiles flew over Taiwan, while others landed in waters inside Japan’s exclusive economic zone.
The easiest interpretation depends almost entirely on which side of the Taiwan Strait someone begins from. Washington can describe the visit as legitimate engagement with a democratic partner and argue that China should not determine where American politicians are permitted to travel. Beijing can describe the visit as another erosion of the understandings that have governed US-China relations since Washington shifted diplomatic recognition from Taipei to Beijing in 1979. Taiwan can view Pelosi’s presence as valuable evidence that international pressure from China cannot completely isolate it. Each interpretation contains a coherent political logic, which is precisely why the confrontation is dangerous.
Taiwan’s status has always depended partly on ambiguity. The People’s Republic of China claims Taiwan as part of China and has never renounced the possibility of using force to achieve unification. Taiwan, officially the Republic of China, operates in practice as a self-governing democracy with its own elected government, military, currency and institutions. The United States recognises the People’s Republic of China diplomatically while maintaining extensive unofficial relations with Taiwan and providing the island with means for self-defence under the Taiwan Relations Act.
This arrangement is deliberately uncomfortable. Washington does not maintain ordinary diplomatic relations with Taiwan as though it were an internationally recognised independent country, but neither does it accept that Beijing can simply determine Taiwan’s future through force. The resulting ambiguity allows several actors to interpret the status quo differently enough that none has historically found changing it dramatically worth the cost.
That sounds unstable, but ambiguity can sometimes create stability precisely because it prevents political actors from being forced into explicit positions they cannot compromise on. Beijing can maintain that unification remains the ultimate objective. Taiwan can maintain de facto self-government. Washington can support Taiwan without formally recognising Taiwanese independence. Everyone dislikes part of the arrangement, but everyone can live with enough of it to avoid war.
Pelosi’s visit tests how much strain that ambiguity can absorb.
This is why I find the argument over whether she had the “right” to visit somewhat incomplete. Of course an American political leader can argue that Beijing should not dictate congressional travel. Taiwan’s elected government was willing to receive her. There is no obvious principle under which China should possess an automatic veto over every interaction between Taiwanese and American officials.
But foreign policy is not simply an exercise in determining what one has the right to do. It is also an exercise in considering the consequences of doing it.
A state can possess the right to take an action and still decide that the action is strategically unwise.
That distinction between legitimacy and prudence is important because political debate often collapses them. If someone argues Pelosi should not have visited, supporters can accuse them of allowing Chinese threats to determine American behaviour. If someone supports the visit, critics can accuse them of recklessly provoking a nuclear-armed great power for a photograph.
Neither framing is sufficient. The relevant question is what concrete strategic objective the visit accomplished, what costs it created and whether another action could have produced similar benefits with lower escalation risk.
That is a cost-benefit question rather than a test of courage.
Pelosi’s strongest argument is signalling. Taiwan lives under enormous pressure from a much larger neighbour that seeks to limit its international relationships. If American officials cancel visits every time Beijing threatens consequences, China learns that threats work. The next threat may therefore become stronger because coercion has been rewarded. Visiting despite pressure communicates that Beijing cannot unilaterally determine the boundaries of American engagement with Taiwan.
This is deterrence at the level of diplomacy. Sometimes refusing to be coerced is valuable even when the immediate action appears mostly symbolic, because compliance today changes expectations about future compliance.
Yet signalling works in both directions. China also wants to demonstrate that actions it considers violations of its red lines impose costs. If Beijing threatened a severe response and then did nothing after Pelosi arrived, Chinese leaders might worry that their warnings would lose credibility. The military exercises therefore serve partly as a Chinese signal to Washington, Taipei and domestic audiences that Beijing’s objections are not merely rhetorical.
The result is a credibility trap. America does not want to cancel because cancellation might make Chinese coercion appear successful. China does not want to tolerate the visit because tolerance might make Chinese threats appear empty. Both sides therefore acquire incentives to take actions they might otherwise prefer to avoid.
This is how relatively symbolic events can become strategically dangerous.
Neither side necessarily wants war. Both sides want the other to believe they are willing to accept enough risk that their red lines should be respected. The danger comes when demonstrating resolve requires behaviour that increases the probability of an accident or miscalculation.
China’s exercises this week are therefore significant beyond their immediate political message. They also provide the People’s Liberation Army with opportunities to practise military operations around Taiwan. Exercises can rehearse blockade-like scenarios, missile operations and coordination between air and naval forces. What begins as political signalling can simultaneously improve military capability.
This creates a problem for future crises because temporary behaviour can establish new precedents. Before this week, particular forms of Chinese military activity around Taiwan might have been considered unusually escalatory. If similar operations become more frequent afterwards, the baseline changes. The exceptional becomes normal.
That may ultimately be one of the most important consequences of Pelosi’s visit.
International crises frequently change the status quo not through formal agreements but through repeated behaviour. A military crosses a line once during an emergency. It crosses again several months later. Eventually the line stops functioning as a meaningful boundary.
This is sometimes called salami slicing: changing conditions through incremental actions small enough that no individual step appears worth a major confrontation.
China has used forms of grey-zone pressure around Taiwan for years, including military aircraft entering Taiwan’s air-defence identification zone. The risk is that this week’s much larger exercises create space for more intense activity to become routine.
Then Pelosi leaves, the immediate headlines disappear, but Taiwan faces a permanently more threatening military environment.
If that occurs, evaluating the visit becomes harder.
The symbolic benefit lasted one day.
The strategic cost could persist.
That does not automatically make Pelosi responsible for China’s choices. Beijing chose its response and remains responsible for the military pressure it applies. Saying an action predictably influences another actor is not the same as transferring moral responsibility for that actor’s decisions.
This distinction between causation and responsibility matters enormously in international politics.
If I know another government may react dangerously to something I do, I should consider that reaction when making policy. That does not mean the other government acquires a moral right to threaten me.
Otherwise coercion would become self-legitimising.
China could simply threaten extreme consequences for every Taiwanese diplomatic interaction and then argue that anyone proceeding was responsible for the escalation.
That would effectively give Beijing the veto it wants.
The challenge is therefore maintaining freedom of action without behaving as though predictable consequences are irrelevant.
This is why strategy is more difficult than principle.
Principles tell us what outcomes we consider legitimate. Strategy determines how best to defend those outcomes under constraints imposed by other actors.
Taiwan itself should remain central to that calculation. Discussions of the crisis can quickly become a confrontation between Washington and Beijing in which twenty-three million Taiwanese people become almost incidental.
They are not.
Taiwan has transformed from authoritarian rule into a competitive democracy. Its citizens elect governments, change parties peacefully and possess political freedoms unavailable on the Chinese mainland. Whatever legal or historical arguments surround sovereignty, the preferences of the people actually living on Taiwan should matter substantially when determining the island’s future.
This is where great-power politics often becomes morally uncomfortable. Beijing discusses national reunification. Washington discusses deterrence and regional balance. Strategists discuss semiconductor supply chains and naval geography. Taiwanese citizens experience the consequences of all of those abstractions.
Taiwan’s semiconductor industry makes the island strategically important beyond its population. Taiwan Semiconductor Manufacturing Company and the broader Taiwanese technology ecosystem occupy crucial positions in global production of advanced chips. Disruption to Taiwan would therefore affect electronics, automobiles, telecommunications and military technologies around the world.
This sometimes leads to the argument that Taiwan is protected by a silicon shield: because the world depends heavily on Taiwanese semiconductor production, major powers have strong incentives to prevent conflict.
Perhaps.
But Ukraine should make us cautious about assuming economic interdependence eliminates military risk.
Russia’s invasion demonstrated that governments can accept enormous economic costs when leaders consider geopolitical objectives more important.
Taiwan’s semiconductor importance raises the cost of conflict.
It does not make conflict impossible.
Economic deterrence is still deterrence, not a guarantee.
The military balance is also becoming more difficult for the United States. China has spent decades modernising the People’s Liberation Army, particularly capabilities relevant to operations near its own coast. Geography gives Beijing enormous advantages because Taiwan sits roughly 160 kilometres from mainland China while the continental United States lies thousands of kilometres away.
The United States therefore faces an increasingly difficult deterrence problem. It wants Beijing to believe that using force against Taiwan would be prohibitively costly without making commitments so explicit that Taiwan concludes it can declare formal independence without considering Chinese reaction.
This is the logic behind strategic ambiguity.
Washington has historically avoided stating with complete certainty exactly how it would respond to a Chinese attack.
Ambiguity operates in two directions. China cannot be sure America would stay out. Taiwan cannot be completely sure America would intervene.
Both therefore have reasons for caution.
That arrangement can look intellectually unsatisfying because people prefer clear commitments. But clarity can destabilise when different actors respond differently to the guarantee.
A completely explicit American defence guarantee might deter China more strongly while simultaneously encouraging Taiwanese politicians to take greater risks because they feel protected.
Economists would recognise this as moral hazard.
Insurance changes behaviour.
A security guarantee can do the same.
This does not mean Taiwan is looking for excuses to provoke China. Taiwanese governments have generally understood the enormous risks involved. It means alliance design has to consider how commitments affect both adversaries and partners.
Again, every policy changes several incentives simultaneously.
Pelosi’s visit therefore sits inside a much larger strategic architecture. The question is not whether one congressional trip causes war. It almost certainly does not by itself. The question is whether repeated symbolic actions, military responses and shifting expectations gradually erode the ambiguity that has helped keep the Taiwan Strait peaceful.
This is where restraint becomes difficult politically.
A leader who cancels a visit can look weak.
A government that reduces military activity can look intimidated.
Politicians receive immediate rewards for demonstrating resolve, while the benefits of restraint are mostly invisible because they consist of crises that never happen.
That creates a structural bias towards signalling toughness.
The public sees the politician standing up to an adversary.
Nobody sees the war that careful diplomacy may have prevented.
This resembles the deterrence problem before Russia invaded Ukraine. Successful prevention creates no dramatic event.
Failed prevention becomes history.
Governments therefore need institutions capable of valuing low-probability catastrophic risks even when domestic politics rewards visible confrontation.
The United States and China are particularly important because their relationship may become the central geopolitical competition of this century. Their economies remain deeply interconnected while their military and technological competition intensifies. They disagree over Taiwan, the South China Sea, trade, technology, human rights and regional influence.
A world in which every disagreement becomes a test of resolve would be extraordinarily dangerous.
Great-power competition needs boundaries.
During the Cold War, the United States and Soviet Union gradually developed crisis-management mechanisms after discovering how close confrontation could come to catastrophe. Arms-control agreements, military hotlines and diplomatic conventions did not make the countries friends.
They made rivalry more manageable.
Washington and Beijing increasingly need similar mechanisms.
That is not appeasement.
Communication matters most between governments that distrust one another.
The more adversarial the relationship becomes, the more valuable reliable communication is because each side becomes less willing to interpret ambiguous behaviour generously.
This week demonstrates why.
America says Pelosi’s visit does not change US policy towards Taiwan.
China says the visit represents a serious political provocation.
Both statements can exist simultaneously because political meaning is interpreted rather than objectively contained inside the aircraft that landed in Taipei.
Good diplomacy needs ways to communicate intentions credibly enough that disagreement does not automatically become escalation.
The danger is that domestic politics increasingly rewards the opposite.
American politicians can gain support by appearing tougher on China.
Chinese nationalism creates incentives for Beijing to respond forcefully to perceived challenges over Taiwan.
Taiwanese politicians operate under their own democratic pressures.
Three domestic political systems therefore interact inside one international security dilemma.
This is why reducing the crisis to two leaders or one visit misses the institutional structure underneath it.
As of tonight, China’s major exercises have demonstrated military capability and political anger without producing direct conflict. That is important. Neither side appears to want the confrontation to become war.
But the absence of war does not mean the crisis produced no strategic change.
The military baseline around Taiwan may have shifted.
Political trust has deteriorated further.
Chinese forces have gained operational experience around the island.
American and Taiwanese policymakers will now update their assumptions about how Beijing responds to high-level visits.
China will update its assumptions about how Washington responds to threats.
Everyone learns.
Those lessons shape the next crisis.
So was Pelosi’s visit worth it?
I am not sure the answer is obvious.
Supporting Taiwan’s democratic space and refusing to allow Chinese threats to dictate every American interaction have genuine strategic value. So does demonstrating that coercion cannot automatically determine diplomatic behaviour.
But symbolic actions should still be judged by their strategic consequences. If the principal result is a temporary demonstration of solidarity followed by a permanently more militarised Taiwan Strait, the cost may exceed the benefit.
The correct lesson is not that America should avoid everything China dislikes.
That would reward coercion.
Nor is it that doing something precisely because China dislikes it demonstrates strength.
That would allow Beijing to determine American behaviour in the opposite direction.
Strategy requires something less emotionally satisfying: deciding each action according to whether it improves the long-term position we actually want.
For the United States, that objective should be relatively clear.
A Taiwan capable of maintaining its democratic self-government, a China deterred from using force, and a regional environment in which neither side believes war is necessary.
Every symbolic gesture should be evaluated against that objective.
Sometimes demonstrating resolve protects peace.
Sometimes restraint protects peace.
The difficult part is knowing which one we are practising before the consequences arrive.
