Indonesia, the world's largest archipelago nation, is located astride the equator in the humid tropics and extends some 2,300 miles (3,700 kilometers) east-west, about the same as the contiguous United States. It is surrounded by oceans, seas, and straits except where it shares an island border with East Malaysia and Brunei on Borneo (Kalimantan); with Papua New Guinea on New Guinea; and with Timor Loro Sae on Timor. West Malaysia lies across the Straits of Malaka, the Philippines lies to the northeast, and Australia lies to the south.
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