Allied occupation of German New Guinea

Allied occupation of German New Guinea
	Part of the Asian and Pacific theatre of World War I
	; Australian Fleet entering Simpson Harbour in 1914.
Date	9 September – 21 October 1914
Location	German New Guinea
Result	Australian–Japanese victory; Australian–Japanese occupation successful;
Belligerents
Australia; Japan	German Empire German New Guinea; ;
Commanders and leaders
William Holmes; George Patey	Carl von Klewitz; Robert von Blumenthal; Albert Hahl
Strength
2,000; 2 Japanese Naval detachments;	500
Casualties and losses
Australian invasion of German New Guinea 39 killed; 12 wounded; 1 submarine missing;	Australian invasion of German New Guinea 85 killed; 15 wounded; Japanese invasion of German Micronesia 1 survey ship scuttled;

The Allied occupation of German New Guinea was the takeover of the Pacific colony of German New Guinea in September – November 1914 by an expeditionary force from Australia, called the Australian Naval and Military Expeditionary Force.