Wednesday, November 27 military aircraft of the Japanese and South Korea have again flew over the "new air defense zone " of China, East China Sea without informing China further increasing tensions in the region and raising new concerns .

The Senkaku Islands - Diaoyu in China, are at the center of trade routes and military towards China Sea and would also seem rich oil fields as well as gas .

Japan traces its rights over the Senkaku Islands to 1894 at the time of the Sino-Japanese war , but Beijing contends that already the Nationalist government of the Kuomintang ( 1928-1949 ) had " redrew the map of " areas of Chinese influence and claimed the islands since 1953 .

The raids of Japan and its U.S. ally in the airspace disputed pose a challenge to China to make the next move .

China has published its coordinates "AIR DEFENSE IDENTIFICATION ZONE" during last weekend and warned that it would take measures "emergency defense " against any aircraft that violate the airspace of the Senkaku Islands .

The Chinese Foreign Ministry spokesman Qin Gang when he was asked how China would respond to any future " offenses " in the area said that the country will give an answer "adequate" that would depend on the situation and the degree of threat.

The U.S. ambassador to Japan Caroline Kennedy in his first speech since taking office has criticized the unilateral action of China as a major threat to regional security.

Washington takes no position regarding the sovereignty of the islands, though acknowledges that Tokyo has administrative control over them, and is therefore bound by a treaty to defend Japan in the event of armed conflict.

US-Japan naval exercises are currently underway in the waters off the islands of Okinawa and Kyushu Japanese do to the east of the "new area " Chinese exercises will also involve the aircraft carrier USS George Washington.

We await developments for next week when U.S. Vice President Joe Biden will travel to Japan, China and North Korea. 

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