Indonesia
Indonesia is a sovereign archipelagic republic in Southeast Asia and Oceania, comprising more than 17,000 islands and ranking as the world's largest archipelago nation and fourth most populous country. It is a founding member of ASEAN and a major emerging economy.
Indonesia is a sovereign archipelagic republic located in Southeast Asia and Oceania, straddling the equator between the Indian Ocean and the Pacific Ocean. With a population exceeding 270 million (as of the early 2020s), it is the fourth most populous country on Earth and the most populous Muslim-majority nation. The capital has historically been Jakarta, though a new capital city, Nusantara, located in East Kalimantan on the island of Borneo, was designated by law in 2022 and is under active development.
Geography
Indonesia comprises more than 17,000 islands, of which roughly 6,000 are inhabited. The five largest islands are Sumatra, Java, Kalimantan (the Indonesian portion of Borneo), Sulawesi, and New Guinea (shared with Papua New Guinea). The country spans approximately 5,100 kilometres from east to west and about 1,900 kilometres from north to south, making it one of the geographically largest countries in the world by area.
The archipelago sits along the Pacific Ring of Fire, making Indonesia one of the most volcanically and seismically active regions on the planet. It contains more active volcanoes than any other country. Notable peaks include Mount Merapi in Central Java and Krakatau in the Sunda Strait. The 2004 Indian Ocean earthquake and tsunami, triggered by a massive rupture off the coast of northern Sumatra, caused catastrophic loss of life across the region.
Indonesia shares land borders with Malaysia on the island of Borneo, with Papua New Guinea on the island of New Guinea, and with Timor-Leste on the island of Timor. It shares maritime borders with Australia, the Philippines, Singapore, Vietnam, and India (near the Andaman and Nicobar Islands).
Biodiversity
Indonesia is one of the world's most biodiverse countries, recognised as a megadiverse country. Its rainforests, particularly on Sumatra, Kalimantan, and Papua, harbour species including the Sumatran tiger, orangutan, Javan rhinoceros, and Komodo dragon. Deforestation, palm oil cultivation, and habitat conversion have placed significant pressure on these ecosystems, a matter of ongoing international concern.
History
Early Kingdoms and Colonial Era
The Indonesian archipelago has been home to advanced civilisations for millennia. Hindu and Buddhist kingdoms flourished across the islands during the first millennium CE, most notably the maritime empire of Srivijaya, centred in Sumatra, and the agrarian empire of Majapahit, based in East Java, which at its height in the 14th century exercised influence over much of the archipelago and the Malay Peninsula. Islam began spreading through the region from the 13th century onward, and by the 16th century it had become the dominant religion across much of the archipelago.
Portuguese traders arrived in the early 16th century seeking control of the spice trade. The Dutch East India Company (VOC) established dominance over much of the archipelago from the early 17th century, and following the VOC's dissolution in 1799, the Dutch state took direct colonial control. The colonial period, which lasted for approximately 350 years in various forms, had profound demographic, economic, and cultural effects on the islands. A brief period of Japanese occupation occurred from 1942 to 1945 during World War II.
Independence and the Sukarno Era
On 17 August 1945, two days after Japan's surrender, Sukarno and Mohammad Hatta proclaimed Indonesian independence. The Netherlands did not immediately recognise this declaration and a revolutionary war followed until December 1949, when the Dutch formally transferred sovereignty. Sukarno led the new republic under a framework he called Guided Democracy from 1959, pursuing a non-aligned foreign policy and promoting the ideology of Pancasila—five foundational state principles including belief in one God, humanitarianism, national unity, democracy, and social justice.
The New Order and Reformation
Following a disputed coup attempt on 30 September 1965, General Suharto consolidated power and removed Sukarno. Suharto's authoritarian New Order government ruled from 1966 until 1998 and achieved significant economic growth alongside the suppression of political opposition and human rights abuses. Mass killings of suspected communists in 1965–1966 resulted in deaths estimated by historians at between 500,000 and one million, though the precise figure remains disputed. Suharto resigned in May 1998 amid the Asian financial crisis and widespread protests. The subsequent Reformasi period ushered in democratic elections, press freedom, and regional autonomy.
Government and Politics
Indonesia is a unitary presidential constitutional republic. The President serves as both head of state and head of government and is elected by direct popular vote for a maximum of two five-year terms. The legislature, the People's Consultative Assembly (MPR), consists of the House of Representatives (DPR) and the Regional Representative Council (DPD).
Since the fall of Suharto, Indonesia has held multiple peaceful democratic elections. Joko Widodo, commonly known as Jokowi, served as President from 2014 to 2024. Prabowo Subianto was elected President in the February 2024 election and inaugurated in October 2024.
Indonesia is a founding member of ASEAN and a member of the G20. It plays an increasingly significant role in regional and global diplomacy.
Economy
Indonesia has the largest economy in Southeast Asia and is classified as an upper-middle-income country by the World Bank. Key sectors include agriculture (palm oil, rubber, coffee, rice), mining (coal, nickel, tin, bauxite), manufacturing, and services. The country is one of the world's largest exporters of palm oil and coal. Nickel has grown in strategic importance given global demand for electric vehicle batteries.
Tourism is a significant contributor to GDP, with major destinations including Bali, Yogyakarta, and Lombok. Economic inequality between the more developed western islands and the more remote eastern islands remains a persistent challenge.
Demographics and Culture
Indonesia is extraordinarily diverse, encompassing more than 300 distinct ethnic groups and over 700 living languages. The largest ethnic group is the Javanese, followed by the Sundanese, Malay, and Batak peoples, among many others. Bahasa Indonesia, a standardised form of Malay, serves as the national language and lingua franca, enabling communication across the diverse population.
Approximately 87 percent of Indonesians identify as Muslim, making it the world's largest Muslim-majority nation. Significant minorities practice Christianity, Hinduism (particularly in Bali), and Buddhism. The state philosophy of Pancasila formally enshrines religious pluralism.
Indonesian culture reflects centuries of influence from Indian, Chinese, Arab, and European civilisations, blended with rich indigenous traditions. Artistic forms include Batik textile work (recognised by UNESCO), the Wayang puppet theatre tradition, Gamelan music, and a wide variety of regional dance forms.