Almost a year ago, China and the Philippines were at loggerheads over their conflicting claims to ownership of the Scarborough Shoal fishing grounds and anchorage in the South China Sea, setting alarm bells ringing about a possible grab for control by Beijing in the maritime heart of Southeast Asia.
Today, the dispute still simmers, but the main zone of contention between China and its neighbors has moved to the East China Sea, where Beijing is contesting Tokyo's sovereignty and administration over the Senkaku islands.
The confrontation between China and Japan, a key ally of the United States, has become one of East Asia's most dangerous flash points. China says it was provoked to take strong retaliatory action after the Japanese government of Prime Minister Yoshihiko Noda bought three of the five uninhabited islands in the contested group from their private Japanese owner in September.
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