What was the most important achievement of the United States during the period of 1812-1815?

What was the most important achievement of the US in this period?

Explanation: America got a boot of Nationalism and American and Great Britian stopped their wars.

a because i tried to vote with just my college id and the answer was no

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,