The Samoan archipelago, located in the southwest of the Pacific Ocean, is comprised of six main islands and several smaller ones. Prior to World War I, Germany and the United States occupied most of the Samoan Islands. During WWI, New Zealand, upon a request by Britain, captured German Samoa and established the British Military Occupation of Samoa. An influenza pandemic in November 1918 killed about 22% of the Samoan population. The administration's lack of response to the disaster became the foundation for Samoans grievances against the New Zealand administration.