Foreign relations China United States Coronavirus diseases West Philippine Sea Philippines Filipinos COVID-19 vaccines South China Sea COVID-19 pandemic Economic zones (Law of the sea) Overseas Filipino Workers Duterte, Rodrigo R. Philippines. Department of Foreign Affairs Sovereignty COVID-19 United Nations Convention on the Law of the Sea Filipino foreign workers Elections Repatriation Locsin, Teodoro L., Jr Robredo, Maria Leonor G. Marcos, Ferdinand R., Jr Philippines. Department of Health Visiting Forces Agreement Human rights Association of Southeast Asian Nations Death Philippine Coast Guard Japan