While countries claim their land borders based on multiple considerations, the claim on the seas has been primarily limited to Exclusive Economic Zone (EEZ) which extends to 200 nautical miles from the baseline. The EEZ includes the territorial sea which extends to 12 nautical miles. While the countries have sovereign rights over the territorial sea, the EEZ provides them the right to existing natural resources. Various countries tend to violate or exploit these norms by laying claim to even uninhabited islands far from their shores. China has also laid claims to uninhabited islands in the South China Sea and has created artificial islands not only to extend its military power but its enhanced claims on the sea. China has made substantial claims in the South China sea, the East China sea and other areas of the Indo-Pacific based on its nine-dash Line and other extraneous considerations. These claims and regular efforts to extend its physical occupation have resulted in China following a new concept which can be termed as `maritime territorialisation’. While some other countries are also attempting to expand their maritime reach, China’s expansion is threatening and has adversely affected the interests of many South East Asian countries. The Chinese expansion can be seen through several zones.