FILE - This aerial file photo taken May 11, 2015 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. The new U.S. commander of the Pacific Fleet joined a seven-hour surveillance flight over the South China Sea on board one of America's newest spy planes, a move over the weekend that will likely annoy China. Adm. Scott Swift joined the surveillance mission on board a P-8A Poseidon plane on Saturday t