Japanese forces also subsequently occupied Hollandia (today known as Jayapura) and established it as their capital during their occupation in New Guinea.

[3] Japanese forces only occupied the northern region of present-day Papua New Guinea, but captured most of present-day Western Papua Japanese forces captured and occupied Hollandia in April 1942 and it was established as the capital of the administration.

[5] The Navy also anchored their ships in Humboldt Bay and later added infantry troops to strengthen their marines.

There were around 100 ships docked at Simpson Harbour, and many Koreans, British, and Indians were forced into labour on Rabaul.

[19] There were small numbers of British, Indian, Korean, and Taiwanese from other parts of the empire who were deported to New Guinea.