East Timor is annexed and becomes the 27th province of Indonesia.

Timor-Leste, also known as East Timor, officially the Democratic Republic of Timor-Leste, is a country in Southeast Asia. It comprises the eastern half of the island of Timor, the coastal exclave of Oecusse in the island's northwest, and the outer islands of Atauro and Jaco. Timor-Leste shares a land border with Indonesia to the west, and Australia is the country's southern neighbour, across the Timor Sea. The country's size is 14,950 square kilometres (5,770 sq mi). Dili, on the north coast of Timor, is its capital and largest city.

The Indonesian invasion of East Timor, known in Indonesia as Operation Lotus, began on 7 December 1975 when the Indonesian military (ABRI/TNI) invaded East Timor under the pretext of anti-colonialism and anti-communism to overthrow the Fretilin government that had emerged in 1974. The overthrow of the popular and short-lived Fretilin-led government sparked a violent quarter-century occupation in which approximately 100,000–180,000 soldiers and civilians are estimated to have been killed or starved to death. The Commission for Reception, Truth and Reconciliation in East Timor documented a minimum estimate of 102,000 deaths as a result of the conflict in East Timor during the period 1974 to 1999, as well as a large part of the consequences of Indonesian war crimes during the invasion of Dili, including 18,600 violent killings and 84,200 deaths from disease and starvation; Indonesian forces and their auxiliaries combined were responsible for 70% of the killings.

Provinces are the first-level administrative divisions of Indonesia. They were formerly called first-level provincial regions, before the Reform era. Provinces have a local government, consisting of a governor and a regional legislative body. The governor and members of local representative bodies are elected by popular vote for five-year terms, but governors can only serve for two terms. Provincial governments have the authority to regulate and manage their own government affairs, subject to the limits of the central government. The average land area of all 38 provinces in Indonesia is about 49,800 km² (19,200 sq mi), and they had an average population of 7,410,626 people in mid-2024.