Japanese forces quickly occupied German-leased territories in the Far East. On 2 September 1914, Japanese forces landed on China's Shandong province and surrounded the German settlement at Tsingtao. During October, acting virtually independently of the civil government, the Imperial Japanese Navy seized several of Germany's island colonies in the Pacific - the Mariana, Caroline, and Marshall Islands - with virtually no resistance as while they were part of German New Guinea the islands were administered by German colonial officers with only a small police force of local Pacific islanders to defend it, there were small clashes between them and landing Japanese troops but this did little to stop the Japanese takeover. The Japanese Navy conducted the world's first naval-launched air raids against German-held land targets in Shandong province and ships in Qiaozhou Bay from the seaplane-carrier "Wakamiya". On 6 September 1914 a seaplane launched by "Wakamiya" unsuccessfully attacked the Austro-Hungarian cruiser "Kaiserin Elisabeth" and the German gunboat "Jaguar" with bombs.