The Barbary Treaties refer to several treaties between the United States of America and the semi-autonomous North African city-states of Algiers, Tunis, and Tripoli, under the rule of the Ottoman Empire, known collectively as the Barbary States. * Treaty with Algiers (1795) * Treaty with Tripoli (1796) * Treaty with Tunis (1797) * Treaty with Tripoli (1805) * Treaty with Algiers (1815) * Treaty with Tunis (1824) * Treaty with Morocco (1836)