There were several reasons why the United States was interested in acquiring Alaska. One reason was the belief that Alaska contained valuable natural resources, such as timber, minerals, and fish. Another reason was the strategic value of Alaska, which would give the United States access to the North Pacific and control over the Northwest Passage. Additionally, some American politicians and businessmen believed that the purchase of Alaska would help to expand the United States' territorial reach and increase its global power.
The Russian Empire, on the other hand, was facing financial difficulties and was eager to sell Alaska in order to raise money. Additionally, the Russian government was concerned about the potential threat of British or French expansion into Alaska, and they saw the United States as a more desirable owner of the territory.
The Alaska Purchase was a controversial issue in the United States at the time, with some people criticizing the government for spending such a large amount of money on a territory that they considered worthless. However, the purchase ultimately proved to be a wise investment, as Alaska has since become a valuable source of natural resources and a strategic military base for the United States.