Final answer:
Stephen Decatur led the Navy forces into Tripoli harbor to destroy the captured US frigate USS Philadelphia, in response to tensions and conflicts with the British Empire.
Step-by-step explanation:
The person who led Navy forces into Tripoli harbor and destroyed the captured US frigate USS Philadelphia was Stephen Decatur. This event is one of the notable American naval victories during the period of conflict leading to the War of 1812, which was characterized by tensions between the United States and British Empire, specifically regarding the impressment of American sailors and interference with American shipping. Stephen Decatur's audacious raid is well remembered for its boldness and the precision with which it was executed.