Borneo, known in Indonesian as Kalimantan, is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and east of Sumatra. The island was named after the nation of Brunei.

The island is politically divided among three countries: Malaysia and Brunei in the north, and Indonesia to the south. It is the only island in the world to be politically administered by three countries at a time. Approximately 73% of the island is Indonesian territory. In the north, the East Malaysian states of Sabah and Sarawak make up about 26% of the island. Additionally, the Malaysian federal territory of Labuan is situated on a small island just off the coast of Borneo. The sovereign state of Brunei, located on the north coast, comprises about 1% of Borneo's land area. A little more than half of the island is in the Northern Hemisphere including Brunei and the Malaysian portion, while the Indonesian portion spans both the Northern and Southern hemispheres.

Borneo is home to one of the oldest rainforests in the world.

Borneo in The War That Came EarlyEdit

The Japanese invaded Borneo in January 1941 along with several other islands of the Pacific. In February, a combined Anglo-Dutch-American attempted to drive the Japanese out of Borneo, but were beaten back at the Battle of the Java Sea.

On the American home front, the media tended to report only positive developments. Peggy Druce, campaigning for the war effort in Pennsylvania, wondered how many Americans knew whether Java was north or south of Borneo. She hadn't, until she started studied maps intensely, and came to the distressing realization that the "great victories" were happening further and further south.

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