Where did Jefferson send American troops to fight on foreign soil?
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Jefferson became the first president to send soldiers to fight on foreign soil when he sent troops to engage Tripoli, which had declared war on the United States. In the First Barbary War, America faced the so-called Barbary States, which included the Sultanate of Morocco and the regencies of Algiers, Tunis, and Tripoli. Tripoli managed to capture the USS Philadelphia during the conflict, but a Marine unit secured the vessel and burned it, preventing its use by the enemy. Marines later defeated Tripoli forces in the city of Derna.