The War of 1812 was a military conflict fought between the United States and Great Britain from 1812 to 1815. The war arose from issues such as British restrictions on American shipping and expansionist desires in North America. It is significant as it fostered a sense of American nationalism and led to the eventual recognition of the United States as a sovereign nation. The conflict also saw the burning of Washington, D.C., and the writing of 'The Star-Spangled Banner.'

The War of 1812 not only shaped American national identity but also inspired poets like Walt Whitman, who captured the spirit of the era in works such as 'Leaves of Grass'. This conflict fostered a sense of patriotism and introspection in literature, reflecting the struggles and aspirations of a young nation.