The officially stated goals of the foreign policy of the United States of America, including all the bureaus and offices in the United States Department of State, as mentioned in the Foreign Policy Agenda of the Department of State, are "to build and sustain a more democratic, secure, and prosperous world for the benefit of the American people and the international community". Liberalism has been a key component of US foreign policy since its independence from Britain. Since the end of World War II, the United States has had a grand strategy which has been characterized as being oriented around primacy, "deep engagement", and/or liberal hegemony. This strategy entails that the United States maintains military predominance; builds and maintains an extensive network of allies (exemplified by NATO, bilateral alliances and foreign US military bases); integrates other states into US-designed international institutions (such as the IMF, WTO/GATT and World Bank); and limits the spread of nuclear weapons.
The United States House Committee on Foreign Affairs states as some of its jurisdictional goals: "export controls, including nonproliferation of nuclear technology and nuclear hardware; measures to foster commercial interaction with foreign nations and to safeguard American business abroad; international commodity agreements; international education; protection of American citizens abroad; and expulsion". U.S. foreign policy and foreign aid have been the subject of much debate, praise, and criticism, both domestically and abroad.
Article Two of the United States Constitution grants power of foreign policy to the President of the United States, including powers to command the military, negotiate treaties, and appoint ambassadors. The Department of State carries out the president's foreign policy. The State Department is usually pulled between the wishes of Congress, and the wishs of the residing president. The Department of Defense carries out the president's military policy.