COLUMN: The Blockade as a Scenario That Is Becoming More Likely

A Civil Defense Drill

On July 21, 2026, according to Reuters, Taiwan deliberately slowed down mobile internet in certain areas of the island as part of civil defense drills designed to prepare the population for a potential breakdown in communications in the event of a crisis with China. Slowing down your own internet as an exercise is a public acknowledgment that you are preparing for a day when someone else might want to do it to you.

This exercise, planned and announced by the Taiwanese authorities themselves, demonstrates a level of institutional preparedness that goes beyond mere political rhetoric and translates into concrete measures tested in the field.

What This Preparedness Reveals About Risk Perception

The mere fact that Taiwan deems it necessary to test, under real-world conditions, the resilience of its digital infrastructure in the face of a hypothetical crisis attests to a perception of risk serious enough to justify a logistical mobilization of this magnitude, likely involving several government agencies.

This methodical preparedness contrasts with the image sometimes portrayed of an island caught off guard by Chinese pressure: on the contrary, Taiwanese authorities are demonstrating structured and proactive planning for crisis scenarios.

A Speech That Calls on the Public to Take Responsibility

On July 17, 2026, according to Reuters, the Taiwanese president called on the island to assume its share of responsibility in “collective defense”—a speech that goes beyond purely military terms to explicitly include the civilian population in the effort to prepare for the Chinese threat. A president who speaks of collective defense is no longer addressing only his military; he is addressing every citizen, reminding them that an island’s resilience is also measured within its homes.

This rhetoric of collective responsibility, far from being purely symbolic, is accompanied by concrete measures such as the mobile internet slowdown exercises documented the day after this presidential statement.

Continuity with Previous Presidential Speeches

This call for collective defense is part of a continuum of Taiwanese presidential discourse that, for several years now, has progressively emphasized the need for shared national resilience rather than solely the island’s conventional military deterrence capability against its mainland neighbor.

This rhetorical shift, documented over several years of successive presidential statements, reflects a gradual institutional recognition of the multifaceted nature of the threat posed by current Chinese pressure.

Senator Tammy Duckworth’s Warning

According to Focus Taiwan on July 19, 2026, U.S. Senator Tammy Duckworth warned that China might opt for an economic blockade of Taiwan rather than a full-scale military invasion—a strategic scenario that redefines the very nature of the risk facing the island and its Western partners. A blockade makes no sound of marching boots or missiles; it simply slowly strangles an island’s economy until surrender becomes, for some, a more rational option than resistance.

This statement, explicitly attributed to a U.S. senator and not to an official Taiwanese or Chinese source, should be viewed as a strategic analysis and not as an established certainty regarding Beijing’s actual intentions.

Why This Hypothesis Is Gaining Strategic Credibility

The hypothesis of an economic blockade rather than a direct military invasion is gaining strategic credibility insofar as it would allow Beijing to exert considerable pressure on Taiwan while avoiding the immediate human and diplomatic costs of an open armed conflict—along with the international consequences that such a conflict would entail.

This strategy of economic coercion, if confirmed, would considerably complicate the expected international response, as a blockade does not necessarily trigger the same mechanisms of military solidarity as a conventional and immediately visible territorial invasion.

Pressure in Papua New Guinea

On July 17, 2026, according to Reuters, Taiwan’s vice president stated that China is “cracking down on Taiwan everywhere,” referring specifically to the pressure exerted by Beijing in Papua New Guinea, a third country where Chinese diplomatic influence is reportedly seeking to further isolate Taiwan on the international stage. Chinese pressure does not stop at the island’s territorial waters; it extends, quietly and diplomatically, to the South Pacific capitals farthest from Taipei.

This extraterritorial dimension of Chinese pressure, documented by a high-level official Taiwanese statement, illustrates a strategy of diplomatic isolation that goes far beyond the purely military context of the Taiwan Strait.

The Detention of Taiwanese Citizens in China: A Growing Concern

The number of Taiwanese detained or missing in China is rising, according to a July 16, 2026, report in The Straits Times—a trend that is causing growing concern among the affected families and Taiwanese authorities, although the sources consulted do not specify the exact reasons for these detentions on a case-by-case basis.

This documented increase, while not sufficient to establish a deliberate systematic policy without further official confirmation, adds to the climate of widespread tension between the two sides of the Taiwan Strait documented by all the sources cited in this column.

Military Preparations Intensify

According to a July 17, 2026, report by the EFE news agency, Taiwan has concluded defense maneuvers conducted amid heightened tensions with China—a demonstration of military preparedness that follows on the heels of civil defense exercises documented earlier that same week. An island that is stepping up both its military and civil exercises within the same month is not preparing for an abstract risk; it is preparing for a deadline that it considers, internally, to be close enough to warrant concrete training.

This concentration of military and civil exercises over such a short period, documented by several independent sources, reflects a clear intensification of Taiwan’s preparedness in the face of growing regional tensions in the summer of 2026.

Coordination Between Military Defense and Civil Resilience

This explicit coordination between military exercises and civil resilience drills—such as the deliberate throttling of mobile internet—illustrates a Taiwanese defense doctrine that now incorporates the preparedness of the general population as a strategic pillar in its own right, on par with conventional military capabilities.

This integrated doctrine, if confirmed in the coming months, could become a model for other territories exposed to the risks of hybrid coercion combining military, economic, and informational pressure.

Multifaceted Pressure Rather Than a Linear Escalation

The combination of facts documented in this column—increased naval activity, diplomatic pressure in Papua New Guinea, and a rise in detentions—paints a picture of multifaceted pressure rather than a linear and predictable military escalation, a characteristic that significantly complicates strategic planning for Taiwan and its Western partners. Beijing is not playing on a single front; it is simultaneously leveraging maritime operations, diplomacy, and the individual fates of Taiwanese citizens, making each scenario for a Western response more complex to calibrate.

This multiplicity of pressure channels, if confirmed as a deliberate strategy rather than a coincidence of separate events, would represent a significant shift in Chinese doctrine toward Taiwan compared to previous years.

The Limitations of This Strategic Interpretation

It should be noted that this interpretation of coordinated, multifaceted pressure remains an analysis that aggregates events reported by separate sources, with none of the sources consulted formally establishing the existence of a unified and deliberate doctrine behind these separate incidents.

This methodological caution in no way diminishes the individual gravity of each documented incident, but it requires that we refrain from presenting as certain a strategic coordination that remains, at this stage, a plausible analytical hypothesis rather than an established fact.

Western Partners: Attentive but Cautious

Taiwan’s Western partners, particularly the United States, are closely monitoring developments in this situation, as illustrated by Senator Tammy Duckworth’s public statement regarding the possibility of an economic blockade; however, this attention has not yet, at this stage, translated into any new concrete measures documented in available sources. A senator who publicly raises the risk of a blockade is, in her own way, already engaging in diplomatic deterrence, even without announcing any concrete measures in response.

This relatively cautious international response—which, at this stage, is documented mainly through statements and warnings rather than concrete actions—could change rapidly if Chinese maritime activity continues to intensify in the coming weeks.

The Ukrainian Precedent as an Implicit Reference

The precedent of the war in Ukraine—which has been widely documented elsewhere—serves as an implicit reference point in Western discussions on preparedness for a potential Taiwan crisis, with several analysts drawing parallels between the two situations in terms of preparedness, deterrence, and allied coordination.

This parallel, while useful for structuring Western strategic thinking, has obvious limitations: Taiwan’s island geography and the specific economic nature of the threat cited by Senator Duckworth differ significantly from the land-based context of the Ukrainian conflict.

A Vigilance That Must Be Maintained Over the Long Term

The convergence of the facts documented in this column suggests that the situation surrounding Taiwan warrants sustained vigilance in the coming months, though this vigilance should not turn into alarmist speculation about a scenario whose exact probability remains, to date, impossible to quantify with certainty. Observing a troubling trajectory does not require predicting its outcome; it merely requires continuing to scrutinize, with the same rigor, every new development that emerges.

This long-term vigilance, if maintained at the institutional level as demonstrated by Taiwan’s recent exercises, constitutes in itself a form of deterrence, regardless of the actual probability of a military or economic escalation in the near future.

Indicators to Watch in the Coming Weeks

Several indicators will warrant particular attention in the coming weeks: changes in the volume of Chinese maritime activity near Taiwan, the frequency of Taiwanese civil defense exercises, and any additional statements by U.S. officials regarding the nature of the perceived threat.

These indicators, taken together rather than in isolation, will provide a better basis for assessing whether the trajectory documented in this column reflects a continuous escalation or a phase of cyclical tension comparable to other episodes already observed in relations between Taipei and Beijing.

Japan and the Philippines: Concerned Observers

Japan and the Philippines, two immediate neighbors of the shipping lanes affected by the increase in Chinese activity reported on July 20, 2026, are closely monitoring developments in this situation, as their own territorial waters and trade routes could be affected by any prolonged disruption in the Taiwan Strait. No Pacific island nation views the Taiwanese tension as a distant problem; each sees in it, with varying degrees of discretion, a reflection of its own strategic future.

This regional concern—though not elaborated upon in detail by the sources consulted for this column beyond the Taiwanese case—is part of a broader dynamic of shared vigilance among the democracies of the Asia-Pacific region in the face of China’s expanding influence.

Regional solidarity remains largely rhetorical at this stage

Despite this shared concern, none of the sources consulted has, to date, documented any concrete measures of regional solidarity beyond statements of principle and the usual diplomatic engagement among these various Asian and Western partners.

This limitation must be honestly acknowledged: the rhetoric of solidarity remains, for the time being, largely disconnected from concrete, verifiable commitments, which in no way diminishes the gravity of the documented facts but calls for additional caution in anticipating possible collective responses.

Semiconductors: An Issue That Extends Beyond the Island Itself

The global concentration of semiconductor production in Taiwan means that any crisis affecting the island takes on an economic dimension that far exceeds the bilateral framework between Taipei and Beijing—a reality that partly explains the sustained attention Western partners have paid to this issue. One never truly appreciates the importance of an island until one imagines, in very concrete terms, what its forced silence would cost the entire global economy.

According to several economic analysts, this global dependence on Taiwan’s semiconductor industry serves as an additional deterrent against any Chinese action that would sustainably disrupt the island’s production, though it does not guarantee absolute deterrence in the face of other strategic considerations.

An economic blockade would affect the entire world, not just the island

It is precisely this interdependence that makes the prospect of an economic blockade—raised by Senator Duckworth—particularly concerning for Taiwan’s trading partners: a prolonged disruption of Taiwan’s semiconductor exports would have measurable economic repercussions far beyond the Asia-Pacific region alone.

This global economic dimension of the Taiwan issue reinforces, according to the analysis presented in this column, the urgency of coordinated international vigilance—though this economic urgency should not be confused with certainty regarding the actual likelihood of such a scenario.

A Call for Clarity Rather Than New Promises

Through the statements documented in this column, Taiwanese authorities seem to be seeking not so much new promises of support as greater strategic clarity from their Western partners regarding the exact nature of the commitment expected in the event of a crisis, whether it be a scenario involving an invasion or an economic blockade. Taipei isn’t asking for the moon; it’s asking to be told, clearly, what will actually happen on the day the scenario described by a U.S. senator becomes a reality.

This quest for clarity—implicitly underscored by the Taiwanese president’s repeated emphasis on collective defense—reflects a desire to hold external partners equally accountable for the credibility of their stated commitments.

The Specific Role of the United States in This Equation

The United States, as reflected in Senator Duckworth’s statement, occupies a unique position on this issue, in that its strategic stance toward Taiwan remains marked by a deliberate ambiguity which, according to some analysts, is intended to maintain a deterrent without formally committing to automatic intervention in the event of a crisis. For decades, Washington has cultivated this deliberate gray area, in which no one—in Beijing or Taipei—can predict with certainty what the United States would actually do when the time comes.

This U.S. strategic ambiguity, long documented in relations between Washington and Taipei, continues to shape the expectations of all regional actors concerned about a potential escalation in the Taiwan Strait.

A history marked by cycles of tension and calm

The Taiwan Strait has, on several occasions since the 1990s, experienced cycles of tension followed by periods of relative calm—a history that calls for caution in interpreting the sequence documented in this chronicle as necessarily heralding a definitive rupture rather than just another cycle among many.

While this historical perspective calls for a measured response to alarmism, it should not be used to downplay the specific gravity of the events documented in July 2026, whose concentration within a single week remains, in and of itself, a notable departure from previous cycles.

What Sets the Current Sequence Apart from Previous Ones

What distinguishes the sequence documented this week from previous crises in the Taiwan Strait is the simultaneity of several distinct signals—maritime, digital, diplomatic, and rhetorical—rather than a single isolated incident, as had often been the case in earlier episodes.

This simultaneity, documented by the convergence of sources consulted for this column, constitutes the strongest basis for warranting heightened vigilance, regardless of any predictions regarding the ultimate outcome of this sequence.

On July 20, 2026, Taiwan reported a significant increase in Chinese maritime activity near the island, according to Reuters—a development that adds to a series of incidents documented that same week: deliberate slowdowns of mobile internet during civil defense drills, a presidential call for collective defense, diplomatic pressure in Papua New Guinea, and U.S. Senator Tammy Duckworth’s warning about the possibility of an economic blockade rather than a full-scale invasion.

This column does not claim that a major crisis is imminent: it documents, with the caution this issue demands, a trajectory of tension that deserves to be closely monitored rather than ignored due to media fatigue. What the facts establish is that Taiwan is preparing, in very concrete terms, for scenarios that its Western partners are also beginning to discuss publicly. An internet slowdown drill and a senator’s warning do not constitute a prophecy, but together they form the kind of signal that a serious column can no longer afford to ignore.

By Maxime Marquette, columnist