Spread across a chain of thousands of islands between Asia and Australia Indonesia has the world's largest Muslim population.Ethnically it is highly diverse with more than 300 local languages. The people range from rural hunter-gatherers to a modern urban elite.
Indonesia has seen great turmoil in recent years having faced the Asian financial crisis the fall of President Suharto after 32 years in office the first free elections since the 1960s the loss of East Timor independence demands from restive provinces bloody ethnic and religious conflict and a devastating tsunami.
Sophisticated kingdoms existed before the arrival of the Dutch who consolidated their hold over two centuries eventually uniting the archipelago in around 1900.
Independence anniversary: 300-year Dutch rule ended in armed struggle
After Japan's wartime occupation ended independence was proclaimed in 1945 by Sukarno the independence movement's leader. The Dutch transferred sovereignty in 1949 after an armed struggle.
Long-term leader General Suharto came to power in the wake of an abortive coup in 1965. He imposed authoritarian rule while allowing technocrats to run the economy with considerable success.
But his policy of allowing army involvement in all levels of government down to village level fostered corruption. His "transmigration" programmes - which moved large numbers of landless farmers from Java to other parts of the country - fanned ethnic conflict.
Suharto fell from power after riots in 1998 and escaped efforts to bring him to justice for decades of dictatorship.
Post-Suharto Indonesia has made the transition to democracy. Power has been devolved away from the central government and the first direct presidential elections were held in 2004.
But the country faces demands for independence in several provinces where secessionists have been encouraged by East Timor's 1999 success in breaking away after a traumatic 25 years of occupation.
Militant Islamic groups have flexed their muscles over the past few years. Some have been accused of having links with Osama Bin Laden's al-Qaeda organisation including the group blamed for the 2002 Bali bombings which killed 202 people.
Lying near the intersection of shifting tectonic plates Indonesia is prone to earthquakes and volcanic eruptions. A powerful undersea quake in late 2004 sent massive waves crashing into coastal areas of Sumatra and into coastal communities across south and east Asia. The disaster left more than 220000 Indonesians dead or missing.
- Full name: Republic of Indonesia
- Population: 230 million (UN 2009)
- Capital: Jakarta
- Area: 1.9 million sq km (742308 sq miles)
- Major languages: Indonesian 300 regional languages
- Major religion: Islam
- Life expectancy: 69 years (men) 73 years (women) (UN)
- Monetary unit: 1 rupiah (Rp)
- Main exports: Oil and gas plywood textiles rubber palm oil
- GNI per capita: US $2010 (World Bank 2008)
- Internet domain:.id
- International dialling code: +62
President: Susilo Bambang Yudhoyono
Former army general Susilo Bambang Yudhoyono won Indonesia's first-ever direct presidential elections in September 2004 in what was hailed as the first peaceful transition of power in Indonesia's history.
President Yudhoyono promised to tackle separatist conflicts
He was re-elected in July 2009 in a landslide victory on the back of improved security and strong growth in Southeast Asia's biggest economy.
Mr Yudhoyono's rivals the former president of Indonesia Megawati Sukarnoputri and vice-president Jusuf Kalla said there was evidence of fraud and inaccurate lists of voters were used.
Critics call Yudhoyono indecisive but he has cultivated an image as a tough and dedicated corruption fighter with high moral integrity. He also ushered in an era of financial and political stability ending a series of secessionist conflicts and restoring economic growth after the devastating Asian financial crisis in 1997-98 wiped out millions of jobs.
The former security minister in the Megawati government identifies the fight against terrorism as a key challenge. As security minister he spearheaded operations to capture Islamic extremists blamed for the 2002 Bali nightclub bombings.
Mr Yudhoyono's first year in office brought perhaps his biggest challenge the 2004 Asian tsunami disaster. His administration won international plaudits for signing a peace deal in 2005 with separatist rebels in Aceh province.
His Democratic Party emerged from the April 2009 parliamentary elections as the largest party.
Mr Yudhoyono a fluent English speaker studied for his master's degree in the US. Rising through the ranks under former President Suharto he led his country's peacekeeping contingent in Bosnia in the 1990s.
Mr Yudhoyono completed several tours of duty in the Indonesian-occupied East Timor.
Sometimes called 'SBY' after his initials Mr Yudhoyono is praised by his supporters for balancing strength and compassion. Critics have said he is over-cautious.
Married with two sons the president has released several albums featuring his own love songs some of them now covered by Indonesian boy bands.
Television is Indonesia's dominant medium. Major national commercial networks compete with public Televisi Republik Indonesia (TVRI). Some provinces operate their own stations. Amid tough competition for advertising mergers have been mooted.
The radio dial is crowded with scores of stations on the air in Jakarta alone. Private radio stations may carry their own news bulletins; however radio and TV broadcasters are banned from relaying live news programmes from international stations.
Internet use is on the up with users numbering around 25 million by late 2007. Analysts see much potential for growth.
Media freedom grew after President Suharto was toppled in 1998; under his rule the now-defunct Ministry of Information monitored and controlled domestic media and restricted foreign media.
US-based Human Rights Watch notes that criminal defamation laws are used to target journalists who criticise public figures.
- The Jakarta Post - English-language daily
- The Jakarta Globe - English-language daily
- Kompas - daily
- Pos Kota - daily
- Indo Pos - daily
- Media Indonesia - daily
- Suara Kary - daily
- Republika - daily
- Sinar Harapan - daily
- Bisnis Indonesia - daily
- Tempo - weekly English-language pages
- Radio Republik Indonesia (RRI) - public operates six national networks regional and local stations external service Voice of Indonesia
- Televisi Republik Indonesia (TVRI) - public operates two networks
- Surya Citra Televisi Indonesia (SCTV) - private
- Rajawali Citra TV Indonesia (RCTI) - private
- Indosiar - private
- Televisi Pendidikan Indonesia (TPI) - private
Antara - English-language pages
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