China Declares 'Air Defense Zone' Over East China Sea

China has declared an 'air defense zone' over the East China Sea, including over the Diaoyu/Senkaku islands disputed with Japan:

http://www.bbc.co.uk/news/world-asia-25062525

http://www.bloomberg.com/news/2013-11-23/china-declares-air-defense-zone-in-east-china-sea-amid-japan-row.html

Let's be careful they don't declare an air defense zone over Arunachal Pradesh.