The Department of State

right|300px The United States Department of State (often referred to as the State Department), is the United States federal executive department responsible for international relations of the United States, equivalent to the foreign ministries of other countries. The Department was created in 1789 and was the first executive department established.
The Department is headquartered in the Harry S. Truman Building located at 2201 C Street, NW, a few blocks from the White House in the Foggy Bottom neighborhood of Washington, D.C. The Department operates the diplomatic missions of the United States abroad and is responsible for implementing the foreign policy of the United States and U.S. diplomacy efforts.
The Department is led by the Secretary of State, who is nominated by the President and confirmed by the Senate and is a member of the Cabinet. The current Secretary of State is Hillary Rodham Clinton. The Secretary of State is the first Cabinet official in the order of precedence and in the presidential line of succession.