"This handout picture taken and released by the Indonesian Armed Forces (TNI) on January 3, 2020 shows commander of  region 1 of defense territory joint command, rear admiral Yudo Margono (front L) inspecting Indonesian troops at Natuna military base in Riau islands. - Indonesia is stepping up sea and aerial patrols of islands near the disputed South China Sea, an official said on January 4, following a diplomatic spat over ""trespassing"" Chinese vessels. Military aircraft and three warships with some 600 navy, army and air force personnel have been deployed to waters around the Natuna islands, which border the South China Sea. (Photo by Handout / Indonesian Armed Forces (TNI) / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT ""AFP PHOTO / Indonesian Armed Forces (TNI)"" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS"
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