DECODING: PLA patrols: rehearsals for a Taiwan blockade

DECODING: PLA patrols: rehearsals for a Taiwan blockade

Introduction: when "maritime law enforcement" becomes a geopolitical weapon

An operation labeled "maritime law enforcement"

In early June 2026, the China Coast Guard (CCG) conducted what it officially described as a "special maritime law enforcement and hydrography operation" in waters east of Taiwan. On the surface: a routine operation within the legal framework of China's claimed waters. In reality, according to analysts from the Washington Times, the ISW, and other institutions: the methodical rehearsal of a maritime blockade of the island.

A flotilla of five CCG vessels issued radio challenges to three foreign merchant ships in waters 35 nautical miles southeast of Taiwan — a location in the open Western Pacific, not in the Taiwan Strait. This geographic detail is crucial: China is no longer confining itself to the strait. It is extending its claims to a second strategic zone east of the island. A full encirclement in the making.

Terminology as a tool of cognitive warfare

Chinese Foreign Ministry spokesperson Guo Jiakun justified the patrols as "legitimate actions" within China's Exclusive Economic Zone and on its continental shelf "in the waters east of China's Taiwan island." This formulation — "China's Taiwan island" — is not incidental: it denies the very existence of a separate political entity called Taiwan and frames any international reaction as interference in China's internal affairs.

It is a well-known strategy: reframe an aggressive action as an exercise of legitimate sovereignty, progressively impose a unilateral legal framework, and compel other states either to comply or be accused of "violating" Chinese sovereignty. The South China Sea underwent this gradual transformation over many years. The waters east of Taiwan are now in the crosshairs.

The blockade plan: anatomy of a strangulation strategy

How you blockade an island of 23 million people

A blockade of Taiwan would not resemble a traditional high-seas blockade. The strategy that Beijing appears to be rehearsing is more subtle: control all navigation entering and leaving the island by requiring prior authorization for each ship, reserving the right to inspect, board, or seize vessels. This is not open warfare — it is a gradual strangulation, slow enough to make any military response politically difficult to justify, yet effective enough to suffocate an island economy that imports 98% of its oil and a large proportion of its raw materials.

On June 25, 2026, Taiwanese officials simulated exactly this scenario in a tabletop exercise: China demands that commercial ships bound for Taiwan obtain its prior approval. In the scenario, Beijing "inspects, boards, or seizes" ships. The Taiwanese response mobilized coast guard forces, naval forces, and ground combat units — meaning that even an economic escalation of this kind would trigger a military response.

The logic of escalation: from grey to war

One reason blockade is the strategy some analysts favor for Beijing is that it offers a pressure gradient that does not immediately cross the threshold of a conventional act of war. China could begin with "routine checks" on a few ships, escalate to systematic inspections, then to cargo diversions, and finally to a complete closure of maritime routes — each step presented as a legal measure under its claimed sovereignty.

This graduated escalation approach is precisely what operations in the South China Sea have tested for years against the Philippines and Vietnam. What we are now observing east of Taiwan looks like the same recipe, applied to a strategically far more important target.

Operational evidence: what the patrols reveal

Location of the incidents: the Pacific, not the strait

The fact that Chinese patrols took place in the Western Pacific, east of Taiwan, and not in the Taiwan Strait, is significant on several levels. First, these waters are internationally recognized as international waters — China's claim to exercise EEZ jurisdiction there is contested by virtually all coastal states in the region and by international maritime law. Second, controlling these waters would mean cutting maritime lines of communication between Japan and the United States — a strategic implication that extends well beyond the Taiwan question alone.

The Hague tribunal had already ruled in 2016 that China's claims over vast swaths of the South China Sea had no legal basis. Beijing rejected that ruling. The same logic now applies to eastern Taiwanese waters: China invokes a sovereignty that international law does not recognize, and is counting on democracies' hesitation to contest it physically.

The Fujian's passage: the carrier as signal

On June 24, 2026, simultaneously with the opening days of Taiwanese military exercises, China's newest and most technologically advanced carrier — the Fujian — transited the Taiwan Strait. Surveillance images published by Taiwan show the vessel in its waters. This deployment coincides with coast guard maneuvers east of the island — as if China were simultaneously rehearsing encirclement from two opposing axes.

The PLA Navy (PLAN) is also improving its at-sea refueling capacity, enabling it to sustain carrier strike groups beyond the first island chain for extended periods. The carrier Liaoning had just returned from a 40-day deployment in the Western Pacific and South China Sea, according to the ISW. China's maritime projection capability is no longer theoretical — it is operational.

The international reaction: statements and their limits

The United Kingdom, France, and Germany speak out

On June 24, 2026, the de facto representations of Britain, France, and Germany in Taipei issued a rare joint statement, expressing concern about "new Chinese activities" in eastern Taiwanese waters. The statement said these actions "threaten regional stability and freedom of navigation and safety of international shipping," and reiterated these countries' opposition "to any unilateral change to the status quo, in particular by threat or use of force or coercion."

The U.S. State Department separately described Chinese actions as "deeply destabilizing." These positions are important signals — but they do not constitute security guarantees. None of these statements mention concrete consequences, sanctions, naval deployments, or any commitment to defend Taiwan in the event of aggression. It is the language of diplomatic concern, not of a security guarantee. This distinction is fundamental.

The limits of a verbal response

A recent wargame, whose results were published in mid-June 2026 by the Washington Times, concluded that Europe and South Korea would not be effective respondents in a Taiwan crisis. The EU, according to the report, "prioritizes internal consensus-building, often at the expense of swift external action in crisis scenarios." This harsh but realistic conclusion serves as a reminder that declaratory power and action power are two very different things.

China knows this. And Beijing is betting precisely on that difference: that Western democracies will condemn verbally but hesitate militarily. This bet is not irrational — it has been confirmed on multiple occasions by recent history. Which makes the current patrols all the more alarming.

The instrumentalization of the Japan-Philippines pretext

The maritime dispute as cover

Beijing officially justified its east-Taiwan patrols as a response to maritime boundary negotiations between Japan and the Philippines. In June, these two countries had announced discussions to delimit their exclusive economic zones in waters that China also claims. Beijing therefore presented its patrols as a defense of its sovereign rights — not as pressure on Taiwan.

This pretext is convenient but transparent. The areas in question are geographically distinct from those at issue in the Japan-Philippines dispute, and the interception of commercial ships 35 nautical miles from Taiwan cannot reasonably be connected to a Japan-Philippines border dispute. What China is testing is its ability to exercise de facto jurisdiction in the Western Pacific, using successive legal pretexts to normalize its presence.

The involvement of Japan and the Philippines

The reaction from Japan and the Philippines to these patrols was significant — both countries protested Chinese actions, which directly affect their own claimed waters. Japan, which maintains its own territorial dispute with China over the Senkaku/Diaoyu islands, views east-Taiwan operations as a direct extension of pressure on its own maritime interests. An escalation in the Western Pacific would not concern only Taiwan — it would affect the entire region.

This is precisely why the tripartite declaration from Britain, France, and Germany carries more weight than it might initially appear. It signals that Europe is beginning to perceive the connection between its own freedom of commercial navigation — on which its economy depends — and what is happening in the Western Pacific.

Blockade exercises as an emerging doctrine

From exercise to doctrine: the gradual normalization

The 4 "combat readiness" patrols conducted by the PLA in May 2026 alone, the CCG maneuvers east of Taiwan, the Fujian's transit through the strait, and the PLAN's extended refueling exercises beyond the first island chain together form a coherent pattern. This is not reactivity — it is an emerging doctrine of preparation for the encirclement of Taiwan.

The Diplomat had characterized as early as May 2026 Beijing's strategy toward Taiwan not as a "D-Day conquest" but as a gradual strangulation through hybrid means — recurring patrols, frequent exercises, economic pressure, cognitive warfare. The objective may not be a spectacular invasion, but a progressive degradation of resistance capacity and international willingness to respond.

The patrol cadence as an attrition tool

Every time Taiwan deploys ships, aircraft, or coastal missiles to respond to a Chinese patrol, it incurs costs in fuel, maintenance, crew time, and psychological wear. Multiplying these incidents — without ever crossing the threshold of an act of war — allows China to gradually exhaust Taiwanese defenses and morale. It is attrition warfare applied to peacetime.

Taiwan's Ministry of Defense documented in May 2026 an ADIZ penetration rate of 79% for PLA sorties — the highest of the year. Each incursion, each interception, each cycle of alert and response affects the operational availability of Taiwanese forces. This is Beijing's strategic calculation: degrade before acting, if action ever proves necessary.

The China Coast Guard as the arm of a hybrid strategy

A progressive militarization of the coast guard

The China Coast Guard (CCG) underwent a major institutional transformation after 2021, when China adopted a law permitting it to use weapons against foreign ships in waters it claims. Since then, the CCG has become a leading instrument of Chinese maritime pressure — notably in the South China Sea against the Philippines, and now increasingly around Taiwan. The advantage of the CCG as a coercion instrument lies precisely in its statutory ambiguity: it is not formally the military navy, which allows Beijing to deny a military dimension to its actions.

The CCG vessels deployed east of Taiwan in June 2026 were among the largest in the fleet — equipped with water cannons and light armament, capable of conducting "checks" on commercial ships. These capabilities go well beyond simple surveillance: they allow for the interception, inspection, and potential diversion of merchant vessels — exactly the kind of actions that a progressive blockade would require.

The "grey zone" doctrine and its application to Taiwan

The "grey zone" doctrine — coercive actions below the threshold of conventional armed conflict — is at the heart of China's strategy around Taiwan. CCG patrols, frequent PLA flights into the ADIZ, repeated exercises, research vessel activity in disputed waters — all these actions are designed to gradually alter the status quo without triggering a decisive allied military response.

The Diplomat analyzed this strategy as early as May 2026 as a "conquest without D-Day" approach — a silent victory through an accumulation of pressures, without a single main shot fired. Within this framework, the east-Taiwan patrols of June 2026 are one more step in a long-term process, not an isolated provocation.

Possible countermeasures: what democracies can do

Freedom of navigation as a practical response

The most direct response to Chinese patrols is the physical assertion of international freedom of navigation. The United States regularly conducts Freedom of Navigation Operations (FONOPs) in waters that China excessively claims — notably in the South China Sea. FONOPs in the waters east of Taiwan, in direct response to Chinese patrols, would send a clear signal that the international community does not recognize Beijing's maritime claims in that zone.

European FONOPs in these waters would have an even greater symbolic impact — they would signal that European engagement in the Indo-Pacific goes beyond statements. The Royal Navy and the French Navy have the capability to conduct such operations — and their presence in the region is justified by European commercial and strategic interests in Pacific freedom of navigation.

Sanctions as a response to maritime coercion

Another possible response — and one largely underused so far — consists of preparing pre-loaded sanctions activatable in the event of Chinese escalation around Taiwan. Identifying in advance which economic sectors, which Chinese entities, and which individuals could be targeted in the event of coercive actions by Beijing — and making this publicly known — constitutes a form of economic deterrence. The Washington Times wargame of June 2026 recommended precisely that the EU "pre-prepare sanctions packages" for this type of scenario.

This approach has the advantage of placing real pressure on Chinese decisions without requiring military action. It is politically easier to adopt in advance than in the middle of a crisis. And it gives concrete substance to diplomatic declarations — transforming words into credible threats.

Conclusion: repetition is a strategy

What these patrols really mean

Chinese patrols in eastern Taiwanese waters and around the strait are not isolated events or improvised reactions. They are part of a deliberate and documented strategy: test international responses, normalize a military presence, rehearse encirclement maneuvers, and progressively erode the threshold at which these actions would be considered provocations. It is a hybrid warfare playbook applied to the most valuable geopolitical stake of our time.

The West's obligation of clarity

Faced with this strategy, the West's response must be clear and concrete. Joint British-French-German declarations are useful — but they do not deter a nuclear power with a long-term strategy and a high tolerance for diplomatic pressure. What deters is the certainty that aggression will have severe economic, military, and strategic consequences. That certainty remains to be built.

By Maxime Marquette, columnist

Columnist's transparency note

My position

I consider Chinese actions around Taiwan to be destabilizing and potentially threatening to the liberal international order. This position is acknowledged. I recognize that Beijing maintains sovereigntist arguments that some states partially recognize — but I consider that these arguments justify neither military intimidation nor interference with international freedom of navigation.

Limits and uncertainties

I have no access to internal Chinese navy communications or to classified assessments of allied intelligence services. The strategic interpretations presented in this article are analyses based on open sources — they do not constitute certainties. Beijing's actual intentions remain opaque.

Sources

Primary sources

Washington Times — China patrols seen as rehearsals for Taiwan blockade — June 25, 2026

Reuters / Internazionale — Taiwan simulates countering a Chinese maritime blockade — June 25, 2026

ISW — China-Taiwan Update, June 26, 2026 — June 26, 2026

ABC News — Joint UK-Germany-France statement on Chinese actions east of Taiwan — June 24, 2026

Secondary sources

AEI — China-Taiwan Update, June 26, 2026 — June 26, 2026

Washington Times — Wargame: Korea unwilling, Europe unable to help in a Taiwan crisis — June 19, 2026

South China Morning Post — Amid PLA pressure, Taiwan starts drill to simulate rapid deployment in crisis — June 22, 2026