China Significantly Increases Military Presence in South China Sea Near Philippine Territory
Manila reports a near doubling of Chinese naval and coast guard vessels in disputed waters, heightening tensions and U.S. treaty obligations.
China nearly doubled the number of military and coast guard ships it deployed to flashpoints in the South China Sea in September, according to data released by the Armed Forces of the Philippines. The Philippines tracked 101 Chinese navy and coast guard vessels around four disputed areas last month, a notable increase from 56 in August and 48 in July.
This surge in activity coincides with a series of increasingly tense encounters between Chinese and Philippine forces in the strategically vital waterway. These confrontations raise the risk of broader conflict, particularly for the United States, which maintains a treaty alliance with the Philippines. The U.S. Mutual Defense Treaty with Manila applies to armed attacks on Philippine forces, public vessels, and aircraft in the South China Sea.
The largest concentration of Chinese vessels, 39 ships, was observed around Scarborough Shoal. An additional 28 vessels were tracked near Thitu Island (Pag-asa), 23 near Second Thomas Shoal, and 11 around Sabina Shoal.
Rear Adm. Roy Vincent Trinidad, a spokesperson for the Philippine military for the West Philippine Sea, characterized China's actions as "illegal, coercive, aggressive and deceptive." However, Philippine officials have refrained from definitively stating that this increase signals a broader strategic shift by China, opting to analyze a longer period before drawing trend conclusions.
Recent incidents underscore the escalating tensions. On a recent Saturday, a Philippine maritime patrol aircraft encountered two Chinese military aircraft near Scarborough Shoal. Manila reported that a Chinese J-16 fighter jet repeatedly maneuvered dangerously close to the unarmed Philippine plane. The Philippine military described this as part of a "recurring pattern of unsafe and coercive behavior."
China presented a different account, claiming the Philippine aircraft entered airspace over Huangyan Dao (China's name for Scarborough Shoal) without authorization and that Chinese forces took necessary measures. Scarborough Shoal, located approximately 120 miles west of the Philippine island of Luzon, has been a persistent flashpoint since a 2012 standoff, with China asserting control despite the Philippines' claim within its exclusive economic zone.
These encounters occur amidst diplomatic efforts to stabilize U.S.-China relations, following a state visit by Chinese President Xi Jinping to Washington. The Philippines continues its resupply missions to its forces stationed on the BRP Sierra Madre, an aging vessel deliberately grounded at Second Thomas Shoal in 1999. Chinese vessels have repeatedly attempted to block these missions, which deliver essential supplies to the troops maintaining the Philippine presence there.