Geopolitical Implication on Contested Waters; Comparison between Indonesia and the Philippines Strategy to Overlapping South China Sea Waters

Both Indonesia and the Philippines are located in the same region of Southeast Asia. These countries are facing significant threat related to nation's sovereignty due to overlapping waters to the biggest claimant of PRC (People's Republic of China) by using Nine-dash line claim. After some failure agreements between region organization of ASEAN (Association of Southeast Asian Nations) through DOC (Declaration on the Conduct) in 2002, several strategies are undertaking in soft politics, renaming several portions of waters under political reasons. West Philippines Sea has been used by the Philippines to enhance sense of belonging and nationalism, meanwhile in Indonesia even though was not active claimant in South China Sea conflict, strategies done quietly recent in 2017 by using North Natuna Sea terms to call Indonesian Exclusive Economic Zone (EEZ) in northern part of Natuna Island which overlapped to China's claim. Descriptive method through literature study have been used in this research to answer research questions. Some findings in research were even though renaming areas are close related to the political reasons, these actions could uplift capacity in terms of national marine protection, yet Chinese marine surveillance not automatically disappear after renaming those areas respectively. Unending confrontation could hamper bilateral negotiation in the region, meanwhile environmental degradation related to coral ecosystem remain high.