Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania. Indonesia comprises 13,466 islands and thirty three provinces. With over 238 million people, it is the world's fourth most populous country, and has the world's largest population of Muslims. Indonesia is a republic, with an elected legislature and president. The nation's capital city is Jakarta. The country shares land borders with Papua New Guinea, East Timor, and Malaysia. Other neighboring countries include Singapore, Philippines, Australia, and the Indian territory of the Andaman and Nicobar Islands. Indonesia is a founding member of ASEAN and a member of the G-20 major economies. The Indonesian economy is the world's eighteenth largest economy by nominal GDP and fifteenth largest by purchasing power parity.
The Indonesian archipelago has become an important trade region since at least the 7th century, when Srivijaya and then later Majapahit traded with China and India. Local rulers gradually absorbed foreign cultural, religious and political models from the early centuries CE, and Hindu and Buddhist kingdoms flourished. Indonesian history has been influenced by foreign powers drawn to its natural resources. Muslim traders brought Islam, and European powers brought Christianity and fought one another to monopolize trade in the Spice Islands of Maluku during the Age of Discovery. Following three and a half centuries of Dutch colonialism, Indonesia secured its independence after World War II. Indonesia's history has since been turbulent, with challenges posed by natural disasters, corruption, separatism, a democratization process, and periods of rapid economic change.
Indonesia is a republic with a presidential system. As a unitary state, power is concentrated in the central government. Following the resignation of President Suharto in 1998, Indonesian political and governmental structures have undergone major reforms. Four amendments to the 1945 Constitution of Indonesia have revamped the executive, judicial, and legislative branches. The president of Indonesia is the head of state, commander-in-chief of the Indonesian National Armed Forces, and the director of domestic governance, policy-making, and foreign affairs. The president appoints a council of ministers, who is not required to be elected members of the legislature. The 2004 presidential election was the first in which the people directly elected the president and vice president. The president may serve a maximum of two consecutive five-year terms.
The population of Indonesia according to the 2010 national census is 237.6 million, with population growth still high at 1.9 percent. 58% living on the island of Java, the world's most populous island. Despite a fairly effective family planning program that has been in place since the 1960s, the population is expected to grow to around 254 million by 2020 and 288 million by 2050.
Indonesian cuisine varies by region and is based on Chinese, European, Middle Eastern, and Indian precedents. Rice is the main staple food and is served with side dishes of meat and vegetables. Spices (notably chili), coconut milk, fish and chicken are fundamental ingredients. Indonesian traditional music includes gamelan and keroncong. Dangdut is a popular contemporary genre of pop music that draws influence from Arabic, Indian, and Malay folk music. The Indonesian film industry's popularity peaked in the 1980s and dominated cinemas in Indonesia, although it declined significantly in the early 1990s. Between 2000 and 2005, the number of Indonesian films released each year has steadily increased.