The Annexation of Hawaii was a time in America in which the United States sought out to make Hawaii a part of the United States. Hawaii was annexed in 1898 and the bill was signed by President WilliamMcKinley. A big reason why annexation was achieved was because of the Japanese threats made by the U.S. Hawaii is very close to Japan and they could access Hawaii to get close to the U.S. That threat provided enough reason to make Hawaii a part of the United States