Atauro in the context of "Wetar"

The Lesser Sunda Islands (Indonesian: Kepulauan Sunda Kecil, Tetum: Illá Sunda ki'ik sirá, Balinese: ᬓᬧᬸᬮᭀᬯᬦ᭄ᬲᬸᬦ᭄ᬤᬘᬾᬦᬶᬓ᭄, romanized: Kapuloan Sunda cénik), now known as Nusa Tenggara Islands (Indonesian: Kepulauan Nusa Tenggara, or "Southeast Islands"), are an archipelago in the Indonesian archipelago. Most of the Lesser Sunda Islands are located within the Wallacea region, except for the Bali province which is west of the Wallace Line and is within the Sunda Shelf. Together with the Greater Sunda Islands to the west, they make up the Sunda Islands. The islands are part of a volcanic arc, the Sunda Arc, formed by subduction along the Sunda Trench in the Java Sea. In 1930 the population was 3,460,059; today over 17 million people live on the islands. Etymologically, Nusa Tenggara means "Southeast Islands" from the words of nusa which means 'island' from Old Javanese language and tenggara means 'southeast'.

The main Lesser Sunda Islands are, from west to east: Bali, Lombok, Sumbawa, Flores, Sumba, Savu, Rote, Timor, Atauro, Alor archipelago, Barat Daya Islands, and Tanimbar Islands. Apart from the eastern half of Timor island and Atauro island which constitute the nation of Timor Leste, all the other islands are part of Indonesia.

Timor-Leste is divided into 14 municipalities (Portuguese: municípios, Tetum: munisípiu), which are former districts. One municipality is also a Special Administrative Region (SAR). The municipalities are divided into administrative posts (former subdistricts), and further subdivided into sucos (villages). Atauro Island was initially a part of Dili Municipality, but became a separate municipality on 1 January 2022. The borders between Cova Lima and Ainaro and between Baucau and Viqueque were changed in 2003.

The municipalities in Timor-Leste are largely inherited from the earlier regencies of the Indonesian province, all of which were created on 30 July 1976 during the New Order.

Liran (Indonesian: Pulau Liran, Indonesian pronunciation: [ˈliran]) is a small island off the southwest coast of Wetar Island, Indonesia. Administratively it is part of West Wetar District (Kecamatan Wetar Barat) within the Southwest Maluku Regency (Kabupaten Maluku Barat Daya). The East Timorese island Atauro is 12 km to the southwest. Liran is the westernmost of the Barat Daya Islands in the province of Maluku. It covers an area of 39.14 km (including minor offshore islands) and had 841 inhabitants in 2019.

Liran is surrounded by coral reefs.