James polk used the slogan "fifty-four forty or fight! " in his 1844 campaign. the slogan referred to the annexation of texas. the annexation of the oregon country. the purchase of florida.

According to us supporters, which was a benefit of purchasing alaska? the territory would be a buffer to invasions from europe. the territory would provide a place for many americans to live. it would increase trade by improving access to the northern pacific. it would increase the united states’ power by creating a bond with russia.