Following the outbreak of World War I, Australian troops captured Kaiser-Wilhelmsland and the nearby islands in 1914, after a short resistance led by Captain Carl von Klewitz and Lt. Robert "Lord Bob" von Blumenthal, while Japan occupied most of the remaining German possessions in the Pacific. The only significant battle occurred on 11 September 1914 when the Australian Naval and Military Expeditionary Force attacked the low-power wireless station at Bita Paka (near Rabaul) on the island of New Britain, then Neu Pommern. The Australians suffered six dead and four wounded – the first Australian military casualties of the First World War. The German forces fared much worse, with one German officer and 30 local policemen killed and one German officer and ten local policemen wounded. On 21 September all German forces in the colony surrendered.