Interest in Hawaii began in America as early as the 1820's, when New England missionaries tried in earnest to spread their faith. US ships started arriving with frequency bring traders and missionaries. The missionaries and their families began to settle down and raise crop, particularly sugarcane.
Keeping European powers out of Hawaii became a principle foreign polity goal. Americans acquired a true foothold in Hawaii as a result of Sugar Trade. The Untied States government provided generous term o the Hawaiian sugar growers.
The United States wanted the port of Pearl Harbor in exchange for the renewing of the sugar treaty. But King Kalakaua refused to give up the independence of any part of Hawaii. The Hawaiian league forced King Kalakua to sign a new constitution at the gunpoint in July 1887. The king angrily called it the Bayonet Constitution.
At the end of the monarchy when king Kalakuala died his sister Lilioukalaia became queen. Lilioukalaia wanted to do away with the bayonet constitution. In 1893 she announced her plan to restore the power of the Hawaiian anarchy. John L Stevens, the american minister to Hawaii decided he would help the rebel sugar planters. The rebels then declared an end to the monarchy. Queen Lilioukalaia surrened uder protest on January 17th, 1893. Congress apologized for the US role in overthrowing Lilioukalaia.
Annexation troubled by the events happening in Hawaii, president Glover Cleveland put a hold on the treaty and ordered an investigation. Cleveland was unwilling to use military force to back Liloukakia. This matter was still in standstill until the next president William McKinney took office. McKinney favored annexation, and congress narrowly voted its apporvel in 1898.
Hawaii officially became american territory. It was granted statehood as the 50th state. This was good for the country to have Hawaii.