Final answer:
The Battle of Washington, DC during the War of 1812 was a humiliating defeat for the United States.
Step-by-step explanation:
The humiliating defeat for the United States was the Battle of Washington, DC during the War of 1812. On August 24, 1814, British forces set fire to important buildings in Washington, including the White House and the Capitol, causing significant damage and embarrassment for the United States.
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