ANSWER: The Samoan World War Crisis of 1887 were a mix of political situations that seemed to see the first major activity of the "First World War in the Pacific" in the Samoan islands between Samoan-German alliances, Samoan-British alliances, and Samoan-American alliances. The German Navy became actively in support of a Samoan Malietoa Candidate and Hawaii had become fully link to the British Crown in 1887.
In 1899, The Tripartite Convention Treaty was held but there were preliminary meetings before the signing. Even with all the political turmoil in 1899, somehow The Tripartite Convention Treaty was signed and Britain retreated from Western Samoa.
In 1914, Britain violated the Treaty by using a New Zealand proxy force of British and New Zealanders to attack a German Radio Station in Western Samoa. According to some historians, for the reason that the German Radio station could broadcast information on Pacific activity.