A regional summit in Asia has ended in serious discord. That is because parties could not agree on how to deal with a territorial dispute. Several countries have competing claims over parts of the South China Sea. But it is the Philippines and China who are in a tense standoff over the Scarborough Shoal. The Philippines says that the area is within 200 nautical miles from its coast, and therefore part of its exclusive economic zone, under UN maritime laws. But China says it has a historic claim to the territory. (INVIS) An Aljazeera team experienced first-hand how China is establishing its presence there. Al Jazeera's Steve Chao reports.