Australian Naval and Military Expeditionary Force

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 (Vice Admiral) Maximilian von Spee's East Asia Squadron of the Imperial German Navy, which threatened merchant shipping in the region.

Source: Wikipedia — Australian Naval and Military Expeditionary Force (CC BY-SA 4.0)