Follow Indonesia’s Tentara Nasional Indonesia Angkatan Udara (TNI-AU) announcement in April to boaster their presence in the South China Sea by upgrading the Ranai Airport and deploying AH-64s and Su-30 there, their sea counterpart Tentara Nasional Indonesia Angkatan Laut (TNI-AL) is following suit too. See here
In an interview with IHS Jane’s TNI-AL Chief of Staff for the Western Fleet (KOARMABAR) Commodore Amarulla Octavian described the upgrades as consisting primarily of logistics support facilities, including the building of fuel depots, that will enable the TNI-AL to sustain deployments in the area.
This new is in conjunction with the recent announcement to deploy four new KCR-40 fast patrol boats to the Western Fleet by the end of the year. These crafts are armed with Chinese made C-705 surface-to-surface missiles, and will be for operations in Natuna and Tanjung DAtu.