What was one significant outcome of the War of 1812 for the United States?

The War of 1812 produced a significant boost in national pride for the United States, often referred to as the "Second War of Independence." This increased sense of nationalism arose as the nation successfully defended itself against British forces, prompting a wave of patriotic fervor among its citizens. Following the war, there was a marked enthusiasm for westward expansion, partly fueled by the belief that the United States had demonstrated its resilience and strength. This psychological shift encouraged settlers and the government alike to pursue growth into new territories beyond the Appalachian Mountains, believing in the nation's manifest destiny.

While the other options touch upon notable aspects of history surrounding the war, they do not encapsulate the broader societal impact as effectively. For example, while the conflict did lead to certain territorial changes in subsequent years, the immediate aftermath of the war primarily fostered a sense of unity and a desire to extend American influence rather than significant land acquisitions at that moment. The treaties with Britain were primarily negotiations that sought to end hostilities rather than establishing any new agreements that could be deemed significant outcomes of the war. Additionally, the Constitution remained intact, with no fundamental alterations resulting directly from the war. Thus, the rise in national pride and the subsequent encouragement of westward expansion remain the prominent legacies