Jefferson was reluctant to become involved in any kind of international conflict, but he believed that force would best deter the Barbary States from demanding further tribute. He ordered the U.S. Navy into the Mediterranean Sea to defend against the Barbary Pirates, beginning the First Barbary War. The administration's initial efforts were largely ineffective, and in 1803 the frigate was captured by Tripoli. In February 1804, Lieutenant Stephen Decatur led a successful raid on Tripoli's harbor that burned the "Philadelphia", making Decatur a national hero. Jefferson and the young American navy forced Tunis and Algiers into breaking their alliance with Tripoli which ultimately moved it out of the war. Jefferson also ordered five separate naval bombardments of Tripoli, which restored peace in the Mediterranean for a while, although Jefferson continued to pay the remaining Barbary States until the end of his presidency.