evidence: Natuna: an idyll on the front line between Indonesia and China [...] More than a thousand kilometres north of Indonesia's sprawling capital Jakarta, Natuna Besar island is just a speck in the vast South China Sea. [...] In December 2019 and January 2020, Indonesia - which is not a claimant state to the Spratly or Paracel islands, but which faces a competing Chinese claim to the seas north of the Natuna Islands — was dragged back into the contest.