1) The document discusses American imperialism in the late 19th/early 20th century, when factors like global competition, economic interests, and beliefs in cultural superiority motivated the US to expand its territory and influence. 2) It provides examples of US expansion like the acquisition of Alaska from Russia in 1867 and the annexation of Hawaii in 1898 after American business interests overthrew the Hawaiian monarchy. 3) The annexation of Hawaii faced some opposition from President Cleveland, who wanted Hawaiians to vote on the issue, but his successor McKinley pushed it through Congress without Hawaiian approval.