Money, especially sugar money, (36) the force for annexation (合并，吞并) of Hawaii. American sugar (37) had a place to stay in Hawaii by the time the United States moved to annex the Pacific (38) in the 1890s. American sugar producers (39) about three-fourths of the island wealth and imported Chinese and Japanese (40) to plant and harvest the crop when they began contesting the (41) government of King Kalakaua and his sister Queen Liliuokalani. In 1887, they (42) the king to grant foreigners the right to vote. In 1890, Congress enacted a tarrif that allowed all (43) sugar into Americain duty free. Domestic growers got a 2-cent per pound subsidy. (44) . prominent American growers in Hawaii sought annexation of the islands to the United States. In 1891, with Queen Liliuokalani now on the throne, Americans pressed harder. By 1893, American troops occupied Honolulu, (45) . Not everyone favored annexation, however. Outgoing President Benjamin Harrison sent the Senate a treaty of annexation in early 1893, but incoming president Grover Cleveland withdrew it. Hawaii was not annexed until 1898, (46) . Advocates of annexation proclaimed the islands tactically necessary because of their location.