Answer:
After the War of 1812, the United States was seen as a greater military power because there was no clear winner.
Step-by-step explanation:
The War of 1812 took place in a context in which America was a young nation, while Britain was an economic and military power, colonizing large territories throughout the globe.
Therefore, the fact that the war had ended without a clear winner, with America reaffirming its sovereignty and its independence against the main world power, made the rest of the nations reconsider their vision against the American military power, beginning to consider it as one of the most important in the world.