...In an attempt to address the challenge posed by the Dey of Algiers, Thomas Jefferson, then U.S. Minister to France, attempted to build a coalition of weaker naval powers to defeat Algiers, but was unsuccessful. However, the Kingdom of Portugal was also at war with Algiers, and blocked Algerian ships from sailing past the Straits of Gibraltar. As a result U.S. merchant ships in the Atlantic Ocean remained safe for a time and temporarily relieved the U.S. Government from the challenges posed by the Barbary States..In 1793 the situation for American trade grew worse. For several years Portugal had been at war with Algiers. Now a Portuguese-Algerian truce enabled the corsairs of Algiers to sally again past the Strait of Gibraltar into the Atlantic. In October and November, 1793, eleven American vessels were captured, forcing the United States, which had thus far only managed to conclude a treaty with Morocco, to engage in negotiations with the other Barbary States....