List of wars involving Papua New Guinea

Conflict	Combatant 1	Combatant 2	Results	Casualties
Battle of Bita Paka (11 September 1914) Raising the Australian flag in Angoram, 16 December 1914.	Germany German New Guinea	Australia	Defeat	30 Melanese police killed, 10 wounded
Australian occupation of German New Guinea (September–November 1914) Australian Fleet entering Simpson Harbour in 1914.	Germany German New Guinea	Australia	Defeat	85 killed and 15 wounded
New Guinea Campaign (1942–1945) Australian forces attack Japanese positions near Buna.	Australia New Guinea United States United Kingdom Netherlands	Imperial Japan	Victory	42,000 total^[1]
Coconut War (August–September 1980)	Vanuatu Papua New Guinea Solomon Islands	Nagriamel rebels	Victory	?
Bougainville Civil War (1988–1998) Ambulances in Arawa, 1998 destroyed in conflict.	Papua New Guinea Buka Liberation Front Bougainville Resistance Force Supported by: Australia	Bougainville Interim Government (BIG) Bougainville Revolutionary Army (BRA) Supported by: Solomon Islands Fiji (allegedly)	Bougainville Peace Agreement Establishment of the Autonomous Bougainville Government	300+ PNGDF soldiers killed Several thousand wounded

References

^ New Guinea: The US Army Campaigns of World War II. 8,500 prior to January 1943, 24,000 between January 1943 and April 1944, and 9,500 from April 1944 to the end of the war. Retrieved 23 July 2015.