Indonesia the world, extending from east to west and from north to south. According to the country's Coordinating Ministry for Maritime Affairs, Indonesia has 17,504 islands (16,056 of which are registered at the UN), scattered over both sides of the equator, and with about 6,000 of them are inhabited. The largest are Java, Sumatra, Borneo (shared with Brunei and Malaysia), Sulawesi, and New Guinea (shared with Papua New Guinea). Indonesia shares land borders with Malaysia on Borneo, Papua New Guinea on the island of New Guinea, and East Timor on the island of Timor, and maritime borders with Singapore, Malaysia, Vietnam,
Indonesia–Malaysia border the area. The dispute started with Malaysia issuing a map in 1979 of its territorial sea and continental shelf which included the Ambalat block. The map drew Malaysia's maritime boundary in a southeast direction into the Celebes Sea after it leaves the eastmost point on land on Sebatik island. This would include the Ambalat block, or a large part of it, within the Malaysian continental shelf. Indonesia has, like the other neighbours of Malaysia, objected to the map. Indonesia has never officially announced the exact locations of its maritime boundaries but claimed during its arguments in the Sipadan Case that