The significance of the Battle of New Orleans in the War of 1812 lies in its outcome and timing. Fought on January 8, 1815, the battle occurred after the Treaty of Ghent had been signed, officially ending the war, but news of the treaty had yet to reach the United States. The American forces, led by General Andrew Jackson, achieved a decisive victory against the British, which bolstered American national pride and unity. This triumph helped to solidify Jackson's popularity and contributed to a sense of American exceptionalism. The battle also showcased the importance of effective military leadership during this formative period in U.S. history.