The Battle of Bita Paka was fought south of Kabakaul, on the island of New Britain, and was a part of the invasion and subsequent occupation of German New Guinea by the Australian Naval and Military Expeditionary Force (AN&MEF) shortly after the outbreak of the First World War. Similar to New Zealand's operation against German Samoa in August, the main target of the operation was a strategically important wireless station—one of several used by the German East Asia Squadron—which the Australians believed to be located in the area. The powerful German naval fleet threatened British interests and its elimination was an early priority of the British and Australian governments during the war.

The Australian Naval and Military Expeditionary Force (AN&MEF) was a small volunteer force of approximately 2,000 men, raised in Australia shortly after the outbreak of World War I to seize and destroy German wireless stations in German New Guinea in the south-west Pacific. The German wireless installations were ordered to be destroyed because they were used by Vizeadmiral Maximilian von Spee's East Asia Squadron of the Imperial German Navy, which threatened merchant shipping in the region. Following the capture of German possessions in the region, the AN&MEF provided occupation forces for the duration of the war. New Zealand provided a similar force for the occupation of German Samoa.