What was a significant outcome of the War of 1812?

The War of 1812 had a profound impact on the United States, particularly in terms of national identity and unity. Following the war, there was a noticeable increase in patriotism and a sense of belonging among Americans. This period, often referred to as the "Era of Good Feelings," was marked by a decline in partisan strife, with the federalist party losing influence, and the Democratic-Republicans enjoying a period of relative political harmony. The war demonstrated that the young nation could stand up to a powerful adversary like Britain, which in turn fostered a sense of confidence and pride within the country. This newfound unity helped lay the foundation for future developments in American society and politics.

In contrast, the other outcomes listed do not accurately reflect the immediate or lasting significance of the War of 1812. While the war reaffirmed American independence, it did not result in a new declaration of independence. The establishment of international trade treaties did not occur as a direct outcome of the war, and the contention surrounding territorial losses is misleading, as the U.S. did not experience significant territorial shrinkage as a result of the conflict. Instead, the war set the stage for the U.S. to expand westward in the years that followed.