The Philippine Coast Guard (PCG) has deployed patrol vessel BRP Cabra (MRRV-4409) to shadow the armed China Coast Guard (CCG) ship 4305 just 35 nautical miles off Subic Bay, a close patrol near the former US naval base. The encounter reflects how Manila now pairs coast guard missions with US drone surveillance as Chinese activity intensifies in the West Philippine Sea.
Intrusive patrol off a strategic port
Open-source tracking by maritime analyst Ray Powell and the SeaLight project shows the 134-meter CCG 4305 running an “intrusive patrol” that hugged the Philippine coastline outside Subic instead of staying on offshore routes. The ship is a Type 301 Zhaokai-class cutter armed with a 76 mm main gun and close-in weapons, making it one of China’s more formidable law-enforcement platforms.
With Subic Bay now hosting a revitalized shipyard and viewed as a potential Enhanced Defense Cooperation Agreement (EDCA) support node for allied forces, a Chinese cutter operating this close is read in Manila as both a sovereignty test and a signal to the US–US-Philippine alliance.
Why was Cabra sent to shadow CCG 4305
PCG statements and defense reporting indicate that Cabra was dispatched specifically to monitor and “shadow” CCG 4305 as it transited off Subic toward waters leading to Bajo de Masinloc (Scarborough Shoal), where Chinese ships have repeatedly challenged Philippine vessels. By staying on the Chinese cutter’s wake, the 44-meter Parola-class Cabra kept a visible law-enforcement presence, reassured nearby merchant and fishing traffic, and gathered radar, video and radio records for possible diplomatic protests or legal steps.
The Subic-area episode ended without collision or damage. By maintaining safe distance while documenting the Chinese ship, Cabra limited CCG 4305’s freedom to act near a major Philippine port and ensured any escalation would be immediately reportable to allies.
US MQ-9A Reapers in the background
The close-in Chinese patrol comes just as the United States Marine Corps confirmed the temporary deployment of MQ-9A Reaper drones from Marine Unmanned Aerial Vehicle Squadron 1 (VMU-1) to Basa Air Base in Pampanga, an EDCA site on Luzon. US officials say the aircraft are unarmed and were sent at Manila’s request to enhance “shared maritime domain awareness” and support Philippine regional security operations. Coverage by Defense News and Defence Security Asia notes that the Reapers give both militaries a persistent intelligence, surveillance, and reconnaissance picture over the West Philippine Sea, strengthening early detection of unusual ship tracks and documentation of incidents
Beijing has not issued a specific statement on the Cabra–CCG 4305 encounter, but in similar cases Chinese coast guard and foreign ministry spokespeople have described their patrols as “normal” and accused the Philippines of provocation and of inviting “external forces” into the dispute. That position clashes with the 2016 South China Sea arbitral award in The Hague, which ruled that China’s “nine-dash line” historic-rights claim has no legal basis under the UN Convention on the Law of the Sea and affirmed the Philippines’ rights within its exclusive economic zone.
The Subic incident shows how Chinese coast guard patrols, when pushed close to critical coastal infrastructure, become tests of resolve and sovereignty. For Manila, sending BRP Cabra was a protective move rather than a symbolic gesture: it guarded approaches to a key port, created an evidentiary record, and signaled that intrusive patrols near the coast would not pass unchallenged. Together with the MQ-9A deployment and recent US–US-Philippine exercises featuring live-fire anti-ship drills near the South China Sea, the episode signals that western Luzon’s waters are under active watch and that “shadow and document” operations will remain central to how Manila asserts its rights in the West Philippine Sea.
As Editor in Chief of The Maritime, I lead content development, interviews, and digital storytelling across our multimedia maritime platform. With over 10 years of experience in the maritime industry, I create and publish in-depth stories and video features that highlight key players, emerging trends, and operational realities across global shipping. Before launching The Maritime, I worked as a Vessel Operator at Imza Marine A.S., gaining hands-on commercial shipping and voyage operations experience. I also served as Marketing Communications Specialist at Gimas Ship Supply & Services, where I managed corporate communication, digital strategy, and industry outreach for shipowners and maritime clients. I hold a Master’s degree in Maritime Transportation Management from Istanbul Technical University and a Master’s degree in Publishing from Marmara University. My work is driven by the belief that the maritime world deserves strong, informed, and accessible media representation. I am committed to sharing the stories of maritime professionals and contributing to the sector’s visibility, knowledge exchange, and future development.
