China Condemns Philippines Joint Patrols in South China Sea

The Chinese People’s Liberation Army (PLA) Southern Theater Command issued a strongly worded statement on July 26 condemning the Philippines for organizing what it described as “so-called joint patrols” with external forces in the South China Sea, warning that such actions disrupt regional peace and stability. The statement, delivered by Senior Captain Zhai Shichen (Navy), spokesperson for the Southern Theater Command, comes at the end of a week of escalating confrontations that have pushed China-Philippines tensions to their highest point in years.

Escalating Confrontations

The PLA statement followed the 17th Multilateral Maritime Cooperative Activity (MMCA) — five-day naval exercises conducted jointly by the United States, Japan, and the Philippines from July 21 to 25 in the Philippine exclusive economic zone. According to The Diplomat, the drills brought together warships, coast guard vessels, and surveillance and fighter aircraft from all three nations.

The exercises represent the culmination of a week marked by a series of violent incidents at sea. On July 20, a Filipino soldier stationed at the BRP Sierra Madre at Second Thomas Shoal sustained a head injury during a confrontation with Chinese Coast Guard personnel. The clash marked the first confirmed injury in the ongoing standoff at the disputed feature, where a World War II-era vessel has been deliberately grounded since 1999 as a military outpost.

Just days later, on July 24 and 25, Chinese Coast Guard vessels deployed water cannons against Philippine ships operating near Scarborough Shoal, a disputed atoll approximately 120 nautical miles west of the Philippine island of Luzon. The back-to-back water cannon incidents represented a significant escalation in China’s maritime enforcement tactics.

Diplomatic Fallout

The violence at sea triggered immediate diplomatic repercussions. Philippine President Ferdinand Marcos Jr. summoned Chinese Ambassador to Manila Jing Quan on July 21, marking the first time Marcos personally called in Beijing’s envoy since Jing’s arrival in December 2025. As Rappler reported, Jing described the meeting as “constructive,” noting that both sides expressed their positions and “true feelings.” In Beijing, Philippine Ambassador Jaime FlorCruz was simultaneously summoned by Chinese authorities.

The diplomatic maneuvering unfolded against the backdrop of Chinese Foreign Minister Wang Yi’s visit to Manila for high-level Association of Southeast Asian Nations (ASEAN) meetings — his first visit to the Philippines since 2022. The ASEAN ministerial meetings, which were already underway, provided an immediate forum for regional diplomacy amid the crisis.

International Reactions

The United States, Japan, and Australia swiftly condemned China’s actions. US State Department Deputy Spokesperson Tommy Pigott characterized China’s conduct as a “troubling pattern of provocation against lawful Philippine maritime operations” and reaffirmed the July 2016 Arbitral Tribunal ruling, which found that China’s expansive maritime claims in the South China Sea had no basis in international law. Japan’s Ambassador to the Philippines, Endo Kazuya, expressed Tokyo being “seriously concerned about the aggressive actions in Second Thomas Shoal which resulted in injury to PH personnel.”

The series of events has tested the credibility of alliance commitments. The US-Philippines Mutual Defense Treaty, signed in 1951, obligates both parties to respond to armed attacks in the Pacific — a commitment both nations have clarified extends to the South China Sea. Japan’s participation in the MMCA exercises, facilitated by a Reciprocal Access Agreement with the Philippines, signaled Tokyo’s growing security assertiveness beyond its traditional defense perimeter.

Beijing’s Position

In its July 26 statement, the PLA Southern Theater Command announced it had deployed naval and air forces for “routine patrols” in the South China Sea. According to the Xinhua News Agency, the statement accused the Philippines of “colluding with external countries” and declared that “theater troops will resolutely safeguard national territorial sovereignty and maritime rights and interests.”

The statement reflects China’s longstanding rejection of the 2016 Permanent Court of Arbitration ruling and its insistence on resolving maritime disputes bilaterally, without external interference. China maintains that its nine-dash line claim — covering approximately 90 percent of the South China Sea — is based on historical rights predating the United Nations Convention on the Law of the Sea (UNCLOS).

Broader Implications

The current crisis represents the most serious China-Philippines confrontation in years, involving a four-phase escalation: China’s deployment of a floating platform at Scarborough Shoal in May 2026; the catalytic clash at Second Thomas Shoal resulting in injury; multi-front pressure through water cannon incidents; and the coordinated military-diplomatic response involving allied exercises and the PLA statement.

Analysts note that the crisis carries significant implications for regional stability. As ASEAN chair in 2026, the Philippines faces the challenge of maintaining coalition cohesion while balancing domestic nationalist pressures against the practical necessity of diplomatic engagement with Beijing. The status of the 2024 provisional resupply arrangement covering humanitarian missions to the BRP Sierra Madre remains uncertain after the latest clashes.

What to Watch

Attention now turns to several key questions: whether the US will adjust its regional force posture in response to the escalation; how President Marcos will address the crisis in his State of the Nation Address; and whether further incidents could trigger formal invocation of the Mutual Defense Treaty. The trajectory of China-Philippines relations in the coming weeks will significantly shape the broader security landscape of the Indo-Pacific region.