Maritime operations

MANILA — The Philippines is closely monitoring a newly discovered Chinese floating structure at Bajo de Masinloc (Scarborough Shoal), fearing it could be a prelude to occupation and eventual militarization of the disputed atoll in the West Philippine Sea (WPS).

MANILA, Philippines — The Armed Forces of the Philippines (AFP) reported monitoring 35 Chinese vessels across four (4) key features in the West Philippine Sea (WPS) from May 4 to 11, highlighting ongoing tensions in the area.

Philippine Coast Guard (PCG) Spokesperson Tarriela asserted that the embassy's statement confirms Xiangyanghong 33 operated without consent near Recto Bank (Reed Bank) within the Philippines' 200-nautical-mile Exclusive Economic Zone (EEZ) and continental shelf. Citing UNCLOS Article 246, he argued marine scientific research in a coastal state's EEZ requires that state's approval, which China lacks. He called China Coast Guard presence as unlawful and lacking jurisdiction.

During a maritime domain awareness (MDA) flight on Wednesday, a PCG Islander 4177 aircraft identified the Chinese research vessel Xiang Yang Hong 33 about 7.34 nautical miles west of Rozul Reef (Iroquois Reef). PCG also detected a Chinese oceanographic research vessel and more than 40 accompanying maritime militia‑type ships operating inside the country’s exclusive economic zone in the West Philippine Sea.

China has for years spent billions of dollars to build a “bluewater navy” capable of projecting power far beyond its own shores, a strategic direction that dates to President Xi Jinping’s assumption of leadership in 2012.

These priorities are already visible in recent defense and security agreements between the Philippines and Japan. They include the 2024 Reciprocal Access Agreement (RAA), which facilitates joint exercises and port visits, and the Acquisition and Cross‑Servicing Agreement (ACSA) signed in January 2026, enabling mutual logistical support between the two militaries. ² Taken together, Manila and Tokyo say these arrangements aim to foster a stable, law‑abiding maritime environment

The developments in Vietnam serve as a reminder that economic and security pressures in neighboring claimant states can have direct implications for Manila’s strategic posture, emphasizing the need for proactive maritime planning, regional coordination, and risk management.

The information acquired by the suspects include the list of Philippine Navy personnel, data of those engaged in WPS operations, and operational details like the timing and schedule of rotation and resupply missions in Philippine outposts in the area.