It seems that tensions are continuing to rise in the South China Sea. Increasing Chinese assertiveness in the region has prompted complaints from Vietnam and the Philippines. Vietnam has recently announced that it will carry out a live fire naval exercise in the region, a move widely seen as a response to China’s increasingly assertive posture, while there is a move in the Philippines to re-name the South China Sea.
A Filipino lawmaker, Walden Bello, has filed House Resolution 1350 calling upon the Filipino Congress to investigate the possibility of changing the name of the South China Sea to the Western Philippine Sea in an attempt to bolster Manila’s territorial claims in the region. Such passions have been aroused by a number of clashes which have seen Chinese naval vessels harass Filipino ships around the disputed Spratly Islands. In one of the most serious incidents, a Chinese naval vessel fire shots at Filipino fishing boats near the Jackson (Quirino) Atoll.
In addition, Manila has also claimed that China has constructed a military post near the Amy Douglas Bank, an act which could constitute a breach of the 2002 Declaration of the Code of Conduct of Parties in the South China Sea (DOC). The DOC is a non-binding agreement between China and ASEAN which calls for restraint and the avoidance of occupation of uninhabited land. Manila argues that this latter provision in particular has been “aggressively violated” by China.
China, for its part, argues that its sovereignty has been breached by Filipino vessels, though it is generally agreed that the clashes have taken place in waters within the Phillipines’ 200 kilometre Exclusive Economic Zone.
The problem is, of course, is how to determine ownership. The United Nations Convention on the Law of the Sea (UNCLOS) gives a country sovereignty over seas up to 12 nautical miles (22.2 km/13.8 miles) from its coast, including of islands. In addition, there is also a recognised 200 nautical mile Exclusive Economic Zone (EEZ). This grants jurisdiction over natural resources found in the region, the right to conduct scientific research and to building structures. Recent incidents have been inside the EEZs of Vietnam and the Philippines.
China, however, argues that its historical sovereignty can be traced back to the 7th century and supersedes any contemporary claims to the sea, but says it is ready to cooperate with others on joint exploration.
In light of such disagreements, Manila has tried to internationalise the situation. It has stated it intent to file an official protest over Chinese actions at the U.N. and has recently suggested that the Mutual Defence Treaty it signed with the U.S. in 1951 would be activated should any dispute with China escalate.
The U.S., however, seems less certain of this. Its embassy in Manila stated that the “US does not take sides in regional territorial disputes”. It outlined Washington’s concerns about recent incidents in the South China Sea and acknowledged that it shares a number of interests with the international community in the region, but refrained from mentioning the Philippines specifically, nor did it note the defence ties it shares with Manila.
This hesitation on the part of Washington has not, however, dissuaded Manila from pursuing its claims. The Filipino military has confirmed that it refers to the South China Sea as the Western Philippine Sea, though Armed Forces spokesman Commodore Miguel Jose Rodriguez was also keen to add that other nations in the region also have their own names for the disputed waters. Not to be outdone, the Filipino weather Bureau, Pagasa (the Philippine Atmospheric, Geophysical and Astronomical Services Administration) has announced that it, too, will henceforth refer to the region as the Western Philippine Sea.
It remains to be seen how China, and indeed other states which hold territorial claims in the South China Sea, will react to this latest move by Manila.




