Question

How did the United States benefit from its victory in the War of 1812?

Answer 1

There were a few since the war ended in a draw, however, some of the benefits were:

: It 'confirmed' the Revolutionary War.
: The British stopped kidnapping U.S. Ships
: The British realized that war with the States was futile which allowed the Americans to relax. 

Answer 2

They want biritsh to stop attacking american ships and kidnapping the american men