This study discusses how China is trying to assert ownership claims over some areas in the South China Sea by militarizing some areas in the South China Sea. This paper will explain how the threats from the militarization of the South China Sea carried out against the maritime security of Indonesia and how the Government of Indonesia responds to these activities. This study uses a literature study method using the concept of Conventional Detterence and Security Dilemma. This research has found that there is an impact caused by militarization conducted by China in the form of many Chinese ships entering Indonesia illegally and conducting confrontational maneuvers. The Indonesian government responded to this impact by building a military base and supporting facilities aimed only at defending the region without any maneuvering that could trigger an escalation of conflict between the two countries.
Keyword: China, South China Sea, militarization, Indonesia, Natuna