Vietnam is fighting against Beijing's supremacy in the South China Sea by building its own islands and military bases in the disputed waters, according to a new report.

The Asia Maritime Transparency Initiative (AMTI), run by the Centre for Strategic and International Studies, reported that Vietnam has been dredging earth and sand and adding to the surface areas of at least eight pieces of land it controls in the southeast quarter of the South China Sea since the beginning of 2025.

It is the latest attempt to push back against China, which has for years laid a claim to a massive swathe of the sea.

Beijing claims almost all of the 1.2million square miles of the South China Sea, a body of water vitally important to global trade and security, belong to it.

It bases its claim on the 'Nine Dash Line', based on historical claims that international courts have ruled are bogus.