Senior Associate Justice Antonio Carpio on Tuesday urged the Duterte administration to file new protests against China over its incursions in the West Philippine Sea. He said the Philippines should file diplomatic protests against China but backed the memorandum of understanding between the two governments for a possible joint oil and gas development in the West Philippine Sea. Carpio said the filing of protests against China was necessary to protect the sovereignty of the Philippines over its exclusive economic zones in the West Philippine Sea that Chinese ships had already reportedly penetrated.

Requejo, R. E. (2018, December 12). Protest vs China incursions- Carpio. Manila Standard ,p. A2.