The Treaty of Tripoli (Treaty of Peace and Friendship between the United States of America and the Bey and Subjects of Tripoli of Barbary) was the first treaty concluded between the United States of America and Tripolitania, signed at Tripoli on November 4, 1796 and at Algiers (for a third-party witness) on January 3, 1797. It was submitted to the Senate by President John Adams, receiving ratification unanimously from the U.S. Senate on June 7, 1797 and signed by Adams, taking effect as the law of the land on June 10, 1797.