Choiseul Island Santa Isabel Island as the Ortega channel after the commander of the expedition. Choiseul islanders suffered attacks from blackbirding in the nineteenth century (the often brutal recruitment or kidnapping of labourers for the sugar plantations in Queensland and Fiji). In April 1885 a German Protectorate was declared over the North Solomon Islands, including Choiseul. In 1900, under the terms of Treaty of Berlin (14 November 1899), Germany transferred the North Solomon Islands (except for Bougainville and its surrounding islands) to the British Solomon Islands Protectorate in exchange for the British giving up all claims to Samoa. Missionaries settled on Choiseul
Choiseul Island under both protectorates, converting most of the population to Christianity. In the early 20th century several British and Australian firms began large-scale coconut planting. Choiseul was visited by Austrian anthropologist and photographer Hugo Bernatzik in 1932. Bernatzik documented some of the few remaining ancestral customs of the island people which are included in an ethnography that he published a few years later. He also took some photographs of the islanders and brought back a stone urn with carvings, reflecting a culture that he deemed was dying in contact with the modern world. During World War II, the Choiseul was occupied