Create a more secure, prosperous, and democratic world
for the benefit of the American people.
U.S. diplomacy is an instrument of power, essential for maintaining effective international relationships, and a principal means through which the United States defends its interests, responds to crises and achieves its international goals. The Department of State is the lead institution for the conduct of American diplomacy, a mission based on the role of the Secretary of State as the President's principal foreign policy adviser.
In order to carry out U.S. foreign policy at home and abroad, the Department of State: