Indonesia*** and the Republic of Indonesia (Indonesian: Republik Indonesia, English: The Republic of Indonesia), abbreviated as Indonesia or Indonesia, is a country in Southeast Asia. It is the largest archipelagic country in the world, consisting of about 17,508 islands, spanning Asia and Oceania, and is also known as the "Land of a Thousand Islands", a country with many volcanoes and earthquakes, with its capital in Jakarta. The capital is Jakarta. It is bordered by Papua New Guinea, East Timor and Malaysia.

Indonesia has a population of more than 248 million (2013), ranking fourth in the world after China, India and the United States. Indonesia is one of the founding members of the Association of Southeast Asian Nations (ASEAN), the largest economy in Southeast Asia and a member of the Group of 20 (G20). The Indonesian archipelago has been an important trading area since the 7th century AD.

Indonesia's local rulers absorbed foreign cultures, religions and political styles, and there were flourishing Buddhist and Hindu kingdoms. Muslim traders brought Islam, while European powers brought Christianity and monopolized trade in the spice islands of the Moluccas after the Great Discovery. After 350 years of Dutch colonial rule, Indonesia declared independence after World War II.

In 2013, Indonesia had a total population of 248 million, making it the fourth most populous country in the world. There are more than 100 ethnic groups, of which 47% are Javanese, 14% Sundanese, 7% Madurese, 3%-4% Chinese, in addition to more than 100 ethnic groups such as Minangkabau, Balinese and other residents, **** accounted for 23%. There are more than 200 ethnic languages and Bahasa Indonesia is commonly spoken.

According to figures released by the Indonesian government in 2014, there are more than 300 ethnic groups in Indonesia, of which the Javanese make up 45% of the population, the Sundanese 14%, the Madurese 7.5%, the Malay 7.5%, and the Chinese about 5% of the population, more than 10 million people.