Even though no international legal instrument explicitly provides the right for States to establish ADIZs, such zones have been unilaterally declared since the 1950s. China’s ADIZ above the Senkaku/Diaoyu Islands - a disputed area in the East China Sea and her recent activities in disputed maritime features in the South China Sea have given rise to concerns about other ADIZs that Beijing may possibly establish above this area. In that context, this paper ventures to draw some potential ADIZs, which may be established by China above the South China Sea, and predicts diplomatic and legal reactions from other States.

1. Background
 2. ADIZs above the South China Sea: Three Scenarios
  A. ADIZ above the Paracel Islands
  B. ADIZ above the Spratly Islands
  C. ADIZ above the Nine-dash Line
 3. Diplomatic and Legal Reactions relating to the ADIZs
  A. Diplomatic Reactions
  B. Legal Reactions
 4. Conclusion

• Le Duy Tran(Research fellow of the University of Melbourne. LL.B. (Diplomatic Academy of Viet Nam))