The War of 1812 had significant importance for U.S. national identity as it reinforced American sovereignty and nationalism. Often considered a "second war of independence," the conflict arose from issues such as trade restrictions, impressment of American sailors, and British support for Native American resistance. The war demonstrated the United States' resolve to defend its rights and territorial integrity. The successful defense of Fort McHenry inspired the national anthem, "The Star-Spangled Banner." Ultimately, the war fostered a sense of unity among Americans, reducing divisions and allowing for the growth of a distinct national identity characterized by resilience and pride in the nation’s independence.