The alleged on-going reclamation of Subi Reef by China is seen from Pag-asa Island in the Spratly Islands in the South China Sea, western Palawan Province, Philippines Monday, May 11, 2015. ,Gen. Gregorio Pio Catapang, the Philippines&#039; military chief has flown to the Filipino-occupied island of Pag-asa in the South China Sea amid territorial disputes in the area with China, vowing to defend the islet and help the mayor develop tourism and marine resources there. (Ritchie B. Tongo/Pool Photo via AP)