German New Guinea (Deutsch-Neuguinea) consisted of the northeastern part of the island of New Guinea and several nearby island groups and was the first part of the German colonial empire. The mainland part of the territory, called Kaiser-Wilhelmsland, became a German protectorate in 1884. Other island groups were added subsequently. New Pomerania, the Bismarck Archipelago, and the northern Solomon Islands were declared a German protectorate in 1885; the Caroline Islands, Palau, and the Mariana Islands were bought from Spain in 1899; the protectorate of the Marshall Islands was bought from Spain in 1885 for $4.5 million by the 1885 Hispano-German Protocol of Rome; and Nauru was annexed to the Marshall Islands protectorate in 1888.
Following the outbreak of the First World War in 1914, Kaiser-Wilhelmsland and nearby islands fell to Australian forces, while Japan occupied most of the remaining German possessions in the Pacific. The mainland part of German New Guinea, the Bismarck Archipelago and the North Solomon Islands are now part of Papua New Guinea. The Micronesian islands of German New Guinea are now governed as the Federated States of Micronesia. The Marshall Islands, Nauru and Palau are independent countries.
The islands to the east of Kaiser-Wilhelmsland, on annexation, were renamed the Bismarck Archipelago (formerly the New Britannia Archipelago) and the two largest islands renamed Neupommern (“New Pomerania”, today’s New Britain) and Neumecklenburg (“New Mecklenburg, now New Ireland).
With the exception of German Samoa, the German islands in the Western Pacific formed the “Imperial German Pacific Protectorates”. These were administered as part of German New Guinea and included the German Solomon Islands (Buka, Bougainville, and several smaller islands), the Carolines, Palau, the Marianas (except for Guam), the Marshall Islands, and Nauru.