
The rising tension at the Ayungin shoal, just 21 nautical miles from Mischief Reef where China has built fortifications, could be a test on the usefulness of the 1951 PH-US Mutual Defense Treaty
In its statement issued last Friday, the Department of Foreign Affairs said: “The BRP Sierra Madre, a commissioned Philippine Naval Vessel, was placed in Ayungin Shoal in 1999 to serve as a permanent Philippine installation in response to China’s illegal occupation of Mischief Reef in 1995. This was prior to the signing of the Declaration of Conduct of Parties in the South China Sea in 2002. The Philippines reiterates that Ayungin Shoal is part of its continental shelf over which the Philippines has sovereign rights and jurisdiction.”
This is the first time that the Philippine government admitted that the 100 meter-long Sierra Madre, a World War II vintage LST that had served the United States as USS Harnett County during the Vietnam War and acquired by the Philippines in 1976, was deliberately grounded in Ayungin Shoal, 105.77 nautical miles from Palawan. Before, Philippine authorities played coy about the grounding of Sierra Madre in Ayungin shoal, which the Chinese call Ren’ai Reef.






