COLUMN: Taiwan Expels, Beijing Returns — The South China Sea as a Full Dress Rehearsal

COLUMN: Taiwan Expels, Beijing Returns — The South China Sea as a Full Dress Rehearsal

Introduction: A Sunday, June 7 That Looks Like Every Sunday, Except It Looks Like None

Seven Taiwanese Patrol Vessels Against Four Chinese Ships

On June 7, 2026, Taiwan's coast guard deployed seven patrol vessels to intercept four Chinese government ships that had entered restricted waters located 30 nautical miles southwest of the island's southern tip. The radio exchange, made public by Taipei, was tense: an unidentified Chinese officer declared that these waters were "under Chinese jurisdiction" and that his vessels were conducting a "special maritime law enforcement operation." A Taiwanese officer responded that China enjoys no sovereign rights in these waters and warned: "If a conflict occurs, your side will face sanctions from the entire world."

By late afternoon, the four Chinese vessels were expelled. But they were still positioned 33 nautical miles southeast of the island's southern tip, maintaining a standoff posture. Both fleets continued to face each other at sea. For Taipei, it was a partial victory. For Beijing, it was precisely what had been planned.

An Operation Organized by the Ministry of Transport — Not the Navy

What makes this incident particularly revealing is its bureaucratic architecture. It was not the People's Liberation Army Navy that organized the June 6 operation. It was Beijing's Ministry of Transport — with the participation of the Fujian and Guangdong maritime administrations, the East China Sea Navigation Support Center, and the East China Sea Rescue Bureau. Officially: deep-water patrol reinforcement, traffic regulation, maritime safety. In reality: an operation of statecraft below the threshold of armed conflict, carefully designed to avoid triggering an American military response while performing sovereignty.

Analyst Zack Liao of Observing China put it plainly: this was not a normal maritime security operation. Beijing had no need to cross Taiwan's waters to ensure maritime safety. The aim was to "perform jurisdiction, test Taiwan's response, and normalize Chinese state presence east of the island."

The Gray Zone Doctrine: How Beijing Turns Routine Into Claims

Perform Jurisdiction Before Exercising It

The gray zone warfare doctrine China practices in waters around Taiwan rests on a simple principle: accumulating precedents creates normalcy, and normalcy creates de facto law. Every Chinese coast guard vessel that enters Taiwan's restricted waters — even briefly, even when expelled — sends a message to other regional actors — Japan, the Philippines, the United States — and to the international community: China is present here. It acts here. These waters are contested.

The June 6–7 operation had an additional dimension: it explicitly targeted discussions between Japan and the Philippines on maritime boundary delimitation in waters Beijing considers its own jurisdiction. Beijing condemned these talks as "illegal" and used the Taiwan operation as an indirect coercive response — a simultaneous message to Taipei, Tokyo, and Manila.

The Four Vessels of the June 6 Operation

Haixun 09: 10,000 tons, Guangdong maritime service. Haixun 06: approximately 6,000 tons, Fujian maritime service. Haixun 08: 7,500 tons, hydrographic vessel. Donghaijiu 113: 3,500-ton rescue vessel. These ships are not warships — but they are powerful state vessels capable of sustaining prolonged presence. Vessel Finder data allowed Taiwanese journalists to confirm their trajectories and positions in real time. During the operation, these vessels also contacted by radio at least three foreign merchant ships, asking for their port of departure, destination, and crew count — what experts describe not as a legitimate safety measure, but as harassment of civilian navigation.

Data from the Institute for the Study of War (ISW) contextualizes the scale of the phenomenon: since February 2025, Chinese coast guard vessels have conducted 39 incursions into restricted waters around the Pratas Islands — 33 in 2025 and 6 in 2026. In May 2026 alone, four incursions into Kinmen waters. On June 11, 2026, for the first time, two Chinese vessels entered the "prohibited" waters around Itu Aba Island in the Spratlys — 15 minutes before being expelled.

The Pratas Islands: The Most Fragile Link in Taiwan's Maritime Defense

A Poorly Defended, Strategically Crucial Atoll

The Pratas Islands — also known as Dongsha — are administered by Taiwan and located in the northern part of the South China Sea, between the main island and Hong Kong. They are guarded by Taiwan's coast guard, not the regular military. Their permanent population is minimal. Their strategic value, however, is considerable: they command a key position across maritime routes between the South China Sea and the East China Sea.

According to Stars and Stripes, since the start of 2026, Chinese coast guard vessels have expelled Taiwanese ships from Pratas waters six times. On May 25, 2026, the Chinese vessel CCG-3501 — 5,500 tons — entered claimed Taiwanese waters, triggering a radio confrontation during which the Chinese crew asserted that China holds sovereignty and jurisdiction over the Dongsha Islands, and broadcast a message promoting forced reunification. Taiwan's coast guard responded: "Your actions prove that China's peace is a sham."

Defending Pratas — and What It Would Take

Taiwan's Coast Guard Administration announced in response to the 2026 escalation that it would deploy larger patrol vessels in the area and secure monthly resupply routes. But the geographic reality is stubborn: Pratas is 340 kilometers southwest of the main island. A massive Chinese military navy deployment could reach the atoll well before any significant Taiwanese reinforcements could arrive.

Regional security experts compare the vulnerability of Pratas to that of the Second Thomas Shoal — the contested reef between China and the Philippines, where Beijing has used water cannons and intimidation maneuvers to block Philippine resupply missions. If Beijing applies the same attrition logic to Pratas, Taiwan could find itself in a situation where maintaining control of the atoll becomes politically and logistically untenable, without a single shot being fired.

June 17 — Kinmen: The Sixth Incursion of the Month

Four Chinese Vessels, Two Hours of Standoff

On June 17, 2026, Taiwan's coast guard deployed several vessels to intercept and expel four Chinese coast guard ships that had entered restricted waters around Kinmen Island. The operation lasted approximately two hours before the Chinese vessels withdrew. According to official Taiwanese data, this was the sixth documented incursion in Kinmen waters since the beginning of the month, and the 21st confirmed incursion near the Kinmen archipelago since the start of 2026. In total, 29 gray zone operations along Taiwan's maritime boundaries have been recorded for the current year.

Kinmen Island is particularly sensitive: it lies only a few kilometers from the coast of Fujian, on the Chinese mainland. Historically, it was the site of direct military confrontations during the First and Second Taiwan Strait Crises in the 1950s. Today, Chinese incursions around Kinmen serve a rhetorical as much as strategic purpose: they remind everyone that Beijing can exert pressure a few kilometers from the doorstep of a potential American ally, without crossing the threshold of declared war.

Washington Diplomatically Rebukes Beijing

The Wall Street Journal reported that the United States officially reprimanded Beijing for its attempts to assert authority over foreign vessels navigating near Taiwan. Washington reaffirmed that waters to the east and south of the island are international waters where freedom of navigation applies, and that China has no legitimate authority to impose traffic controls or interrogate third-party vessels.

But a diplomatic rebuke, however clear, doesn't carry the deterrent force of a naval presence. The American carrier strike group USS Ronald Reagan and its escorts conducted exercises in the region, but the intensity of Chinese gray zone operations has not diminished. The escalation continues because the cost Beijing pays for these operations remains low, and the gain in terms of gradually normalizing its presence is real.

June 18: Taiwan Condemns Chinese Marine Survey in Its EEZ

A Scientific Research Vessel in the Eastern EEZ

On June 18, 2026, Taiwan's coast guard expelled a Chinese research vessel that was conducting what Beijing called a "marine environmental survey" in Taiwan's Exclusive Economic Zone, 41 nautical miles east of Hualien. The vessel, which departed Zhoushan on June 10, had progressively advanced toward Taiwanese waters before being intercepted. Vessel Finder data confirmed the ship was withdrawing from the area after the intervention.

This incident adds to the list of "firsts" that Beijing is deliberately accumulating: first coordination between coast guard vessels and research vessels at Pratas, first intrusion into the prohibited waters of Itu Aba, and now a scientific survey in the eastern EEZ. Each "first" establishes a precedent. Each precedent is meant to become the baseline for the next operation. Taiwan's Central Agency for Ocean Affairs declared that this "proves that what China has done in the waters east of Taiwan must be treated as a challenge to the international order."

The Regional Dimension: Japan, the Philippines, ASEAN

The escalation around Taiwan in June 2026 cannot be understood in isolation. It fits into a regional pattern: simultaneously, Chinese coast guard vessels are blocking Philippine resupply missions at the Second Thomas Shoal, Chinese military aircraft are regularly violating Japan's Air Defense Identification Zone around the Senkaku Islands, and China's fishing fleet maintains an intimidating presence in the waters of several ASEAN members. The Institute for the Study of War (ISW) documents how the Dutch frigate De Ruyter faced verbal warnings and electronic jamming after a freedom of navigation operation near the Paracel Islands on May 28, 2026.

This overall picture reveals a deliberate strategy: simultaneously test several regional actors, keep each escalation below the threshold that would trigger a collective response, and probe the cracks in the American-Japanese-Australian security coalition that constitutes the primary barrier to Beijing's regional ambitions. Taiwan is the center of gravity of this strategy — but not the only target.

What All This Is Rehearsing — and What It Isn't

The Dress Rehearsal Thesis

Several regional security experts, including analysts from the ISW and the Center for Strategic and International Studies, see in the accumulation of these gray zone operations a dress rehearsal: Beijing is learning Taiwan's responses, testing its reaction times, measuring the consistency of its protocols, assessing the speed and scope of the American diplomatic response. Each operation is data collection for the next one — and potentially for something far larger.

This thesis is sound, but it needs nuancing. A rehearsal does not imply a timeline. Xi Jinping has not set a deadline for direct military action against Taiwan — or at least, no public evidence exists to that effect. What is certain is that gray zone pressure is already altering the status quo without a shot fired. Itu Aba was penetrated for the first time. The eastern EEZ was scientifically surveyed. Civilian navigation was interrogated. These precedents now exist. Whatever follows, they are already part of the record.

The Danger of Background Noise

The most immediate risk may not be a deliberate invasion — it's an accidental escalation triggered by the saturation of standoffs. When forces on both sides operate at very close range, under constant pressure, with tense radio exchanges, the probability of an unplanned incident rises. A warning shot misinterpreted. An avoidance maneuver gone wrong. A crew reacting before receiving orders. The history of maritime crises — from the Gulf of Tonkin to the EP-3 incident of 2001 between the U.S. and China — shows that it is often accidents that trigger major escalations, not deliberate policy decisions.

Taiwan now has sufficient data on Chinese tactics to adjust its protocols. But the accumulation of 29 gray zone incidents in six months means its coast guard forces are operating under high operational stress, with human and material resources that are not infinite. Attrition is a strategic factor that Beijing fully integrates into its calculation — even if Taipei prefers not to frame it that way.

The Strategic Impasse: What the Pacific Alliance Must Do Now

Reinforce Allied Presence or Accept Normalization

The question is no longer theoretical. With 29 gray zone operations in six months around Taiwan, with incursions now documented at the Pratas Islands, Kinmen, Itu Aba, and in the eastern EEZ, the Pacific Alliance — the United States, Japan, Australia, the Philippines — must decide whether it accepts or contests the new normalcy that Beijing is imposing. Statements of principle are necessary but insufficient. Deterrence requires a visible, sustained, and consistent presence in the waters China illegally claims.

Experts from the Center for Strategic and International Studies have since early 2026 been recommending an increase in the frequency of American Freedom of Navigation Operations, closer coordination with Taiwan's coast guard, and the development of a fleet of autonomous maritime drones capable of continuously monitoring Chinese incursions without exposing human crews. These recommendations have not been fully adopted. Meanwhile, Beijing continues to accumulate its precedents.

The Cost of Inaction, Measurable in Precedents

Every unchallenged incursion creates a precedent. Every precedent becomes a justification for the next. The South China Sea is being transformed not by a sudden decision, but by an accumulation of micro-decisions that no one was willing to stop in time. The logic of the gray zone is precisely designed to exploit the fact that each incident taken individually does not seem to justify a strong response — but that their sum represents a major strategic transformation.

Taiwan's coast guard knows this. Taipei knows it. The analysts at ISW document it with precision. What's missing is the political will of the democratic coalition to treat gray zone incursions with the same strategic urgency as direct military provocations — because, over the long term, their cumulative effects are just as devastating to the regional status quo.

Conclusion: A Sea Changing Status Without Anyone Having Decided It

What the Numbers Say That Declarations Dare Not

Thirty-nine incursions at Pratas since February 2025. Twenty-nine gray zone operations against Taiwan since the start of 2026. The first coordination between research vessels and coast guard vessels at Pratas. The first penetration of the prohibited waters at Itu Aba. The first interrogation of third-party merchant ships east of Taiwan. These figures don't lie: the South China Sea is changing status. Not legally — international law remains what it is, and China continues to violate it. But politically and operationally, Beijing is imposing a reality on the water that differs from the law.

Democratic governments tend to respond to this reality with statements of principle. These statements are necessary — they keep the normative framework alive. But they are not enough to reverse the dynamic on the water. The only thing that can alter Beijing's calculation is a real increase in the cost of its operations — diplomatic, economic, or through a more sustained and visible allied naval presence in the region.

What the West Must Understand Before It's Too Late

The South China Sea is not the theater of a bilateral dispute between China and Taiwan. It is the laboratory where Beijing tests the limits of the international order that the United States has built since 1945. What happens 33 nautical miles south of Taiwan will determine what is possible 33 nautical miles from the Philippines, Japan, Australia. If the democracies of the Pacific and their Atlantic allies fail to grasp this systemic challenge, they will watch the South China Sea become a Chinese lake — not through a sudden war, but through an accumulation of faits accomplis that no one was willing to stop in time.

Additional conclusion: What June 2026 Will Have Changed

The Breaking of Precedents

Until June 2026, Chinese incursions into Taiwanese waters were documented primarily around Pratas and Kinmen. This month, Itu Aba and the eastern EEZ were crossed for the first time. This is not accidental escalation — it is a deliberate program of geographic expansion of gray zone operations. The next step may be the waters around Orchid Island, or a larger coordinated operation in the maritime corridors north of the Philippines. No one can predict with certainty.

What is certain is that June 2026 will be cited as a turning point in future analyses of the Sino-Taiwanese escalation — the month when several firsts were crossed simultaneously, when the frequency of incidents reached a record level, and when the international response, despite its rhetorical coherence, failed to reverse the operational trend. Taiwan expels. China returns. And every return claims a little more symbolic ground.

The Sea Does Not Lie

AIS data, documented patrols, radio exchanges published by Taipei — all of this constitutes a factual corpus that does not depend on anyone's political declarations. The South China Sea is changing. Not in treaties, not in international law, but in the daily reality of the vessels, zones, and claims accumulating operation by operation. The standoff of June 7, 2026 will remain in the textbooks not because it was extraordinary — but because it was perfectly ordinary in the new normalcy Beijing is methodically constructing.

By Maxime Marquette, columnist

Columnist's transparency note

My Sources and My Biases

This column rests on verified open sources: communiqués from the Taiwan Coast Guard Administration, ISW analyses, Stars and Stripes reports, the Straits Times, and the Observing China analysis. I am not a specialist in international maritime law or military analysis. I am a columnist who reads, compiles, and interprets. My bias is acknowledged: I favor international freedom of navigation, Taiwan's sovereignty, and oppose China's expansionism in the South China Sea.

What I Don't Know

I do not know Xi Jinping's precise intentions. I don't know whether these operations genuinely constitute preparation for an invasion or a strategy of pure attrition without any invasion intent. I have no access to American or Taiwanese intelligence on medium-term Chinese intentions. The difference between a dress rehearsal and a permanent structural pressure without invasion intent is impossible to establish from the outside. I have presented both theses honestly.

Sources

Primary sources

Al-Ahram / AFP — South China Sea standoff, June 7, 2026, 33 nautical miles south of Taiwan — June 7, 2026

Straits Times — Taiwan expels four Chinese ships from restricted waters — June 7, 2026

Straits Times — Renewed Pratas Islands standoff in South China Sea — June 5, 2026

Asharq Al-Awsat — Taiwan: Chinese ships in Itu Aba / Taiping waters, first time — June 11, 2026

Secondary sources

Observing China / Zack Liao — Analysis of the June 6 operation, below the threshold of armed conflict — June 16, 2026

ISW — China-Taiwan Update, 39 Pratas incursions since 2025, CCG data — June 5, 2026

Stars and Stripes — Pratas coast guard confrontation, 33-hour CCG-3501 standoff — May 26, 2026