German Samoa (German: Deutsch-Samoa) was a German protectorate from 1900 to 1920, consisting of the islands of Upolu, Savai'i, Apolima and Manono, now wholly within the independent state of Samoa, formerly Western Samoa. Samoa was the last German colonial acquisition in the Pacific basin, received following the Tripartite Convention signed at Washington on 2 December 1899 with ratifications exchanged on 16 February 1900. It was the only German colony in the Pacific, aside from the Kiautschou Bay concession in China, that was administered separately from German New Guinea.