FILE - In this Monday, May 11, 2015, file photo, this aerial photo taken through a glass window of a military plane shows China's alleged on-going reclamation of Mischief Reef in the Spratly Islands in the South China Sea. China's campaign of island building in the South China Sea might soon quadruple the number of airstrips available to the People's Liberation Army in the highly contested and strategically vital region. That could be bad news for other regional contenders, especially the U.S., the Philippines and Vietnam. (Ritchie B. Tongo/Pool Photo via AP, File)
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