The Department of State
advises the President in the formulation and execution of foreign policy and promotes the long-range security and well-being of the United States. The Department determines and analyzes the facts relating to American overseas interests, makes recommendations on policy and future action, and takes the necessary steps to carry out established policy. In so doing, the Department engages in continuous consultations with the American public, the Congress, other U.S. departments and agencies, and foreign governments; negotiates treaties and agreements with foreign nations; speaks for the United States in the United Nations and other international organizations in which the United States participates; and represents the United States at international conferences.
The Department of State was established by act of July 27, 1789, as the Department of Foreign Affairs and was renamed Department of State by act of September 15, 1789 (22 U.S.C. 2651 note).