Japan has joined a battle of diplomatic notes over the South China Sea dispute, adding to pressure on Beijing over its expansive claims in the strategically important waterway.In a note verbale – a type of diplomatic communication – sent on Tuesday, Japan’s permanent mission to the United Nations said China’s “drawing of territorial sea baselines … on relevant islands and reefs in the South China Sea” failed to satisfy conditions set out in the UN Convention on the Law of the Sea.It also…

This post was originally published on South China Morning Post.