United States foreign policy

United States foreign policy
Name	United States foreign policy
Caption	Great Seal of the United States
Established	18th century
Primary actor	President of the United States
Legislature	United States Congress
Executive	United States Department of State

Contents

United States foreign policy is the set of strategies and actions by the United States to advance national interests, manage relations, and respond to global events. It is conducted through interactions among the President of the United States, United States Department of State, United States Department of Defense, United States Congress, and other agencies, engaging with states such as China, Russia, United Kingdom, Japan, and organizations like the United Nations, North Atlantic Treaty Organization, and World Trade Organization. Major doctrines, crises, and agreements—such as the Monroe Doctrine, Truman Doctrine, Marshall Plan, Cuban Missile Crisis, and Camp David Accords—have shaped its evolution.

History

From the early republic, figures like George Washington and Thomas Jefferson influenced policies exemplified by the Farewell Address and the Embargo Act of 1807, while the War of 1812 tested relations with United Kingdom. The 19th century saw the Monroe Doctrine and expansion via the Mexican–American War and the Spanish–American War, leading to overseas possessions and interactions with Philippines and Cuba. The 20th century featured involvement in the World War I and leadership in World War II, followed by the Truman Doctrine, the Marshall Plan, and the onset of the Cold War confronting the Soviet Union through events like the Berlin Airlift, the Korean War, and the Vietnam War. Detente, arms-control agreements such as the Strategic Arms Limitation Talks, and crises including the Iranian Revolution and the Iran hostage crisis punctuated the 1970s. The post–Cold War era engaged conflicts in the Gulf War, humanitarian interventions in Somalia, peace processes in Balkans (e.g., Dayton Agreement), counterterrorism after the September 11 attacks leading to the War in Afghanistan and the Iraq War, and shifts toward competition with China and renewed tensions with Russia after events like the Annexation of Crimea by the Russian Federation.

Policy has balanced doctrines such as Isolationism in the interwar period and Internationalism after World War II, reflecting norms like deterrence in the Nuclear Non-Proliferation Treaty era and promotion of democracy through initiatives tied to the National Endowment for Democracy and the Freedom House. Core objectives include protecting territorial integrity of allies such as South Korea and NATO members, securing sea lanes in regions like the South China Sea, promoting trade regimes exemplified by North American Free Trade Agreement and United States–Mexico–Canada Agreement, and countering proliferation via the International Atomic Energy Agency and agreements like the Joint Comprehensive Plan of Action. Humanitarian imperatives are pursued alongside strategic aims, as in responses to crises in Syria and Haiti.

The President of the United States wields diplomacy through the United States Department of State and appoints ambassadors to missions such as those in United Nations Headquarters. Legislative oversight and treaty consent rest with United States Senate and committees including the Senate Foreign Relations Committee and the House Foreign Affairs Committee. Security partnerships leverage the United States Department of Defense, Central Intelligence Agency, and elements like United States European Command and United States Indo-Pacific Command. Economic tools include sanctions administered by the United States Department of the Treasury and the Office of Foreign Assets Control, while development and assistance operate through agencies such as the United States Agency for International Development and multilateral banks like the World Bank and International Monetary Fund. Public diplomacy engages institutions like the Smithsonian Institution and programs such as the Fulbright Program.

Bilateral ties with powers such as China–United States relations, United States–Russia relations, United States–United Kingdom relations, and United States–Japan relations shape strategic postures; regional frameworks include partnerships with European Union, Association of Southeast Asian Nations, African Union, and Organization of American States. Events like the Taiwan Strait Crisis, Yom Kippur War, and Camp David Accords influenced regional balances. Trade agreements and disputes feature in relations with Canada, Mexico, European Union, and India. Security pacts and bases in places such as South Korea, Japan, Germany, and Guantanamo Bay reflect enduring bilateral commitments.

Deterrence strategies rely on nuclear triad posture defined during debates over the Strategic Defense Initiative and guided by accords like the New START treaty. Counterterrorism operations have involved the Central Intelligence Agency, United States Special Operations Command, and partnerships with states during operations in Afghanistan and against Islamic State of Iraq and the Levant. Arms transfers and security assistance flow through instruments like the Foreign Military Sales program and the Leahy Law, with export control regimes tied to the Arms Export Control Act. Military interventions and no-fly zones have been used in contexts from Kosovo War to Libya intervention, while alliances in NATO and security dialogues like the Quad shape collective defense.

Trade policy balances free-trade frameworks, exemplified by General Agreement on Tariffs and Trade and World Trade Organization participation, with protectionist measures such as tariffs invoked under statutes like the Tariff Act of 1930 and actions under the Committee on Foreign Investment in the United States. Sanctions and financial measures target actors like Iran, Venezuela, and North Korea, enforced via the Office of Foreign Assets Control. Development finance utilizes institutions including the Export–Import Bank of the United States and initiatives such as the Millennium Challenge Corporation. Negotiations over intellectual property, digital trade, and supply chains involve partners such as European Union and China.

Humanitarian responses coordinate United States Agency for International Development with international actors like the United Nations High Commissioner for Refugees during crises in Syria and displacement from conflicts such as the Rwandan Genocide. Human rights promotion intersects with asylum policy, sanctions for abuses under the Global Magnitsky Human Rights Accountability Act, and public diplomacy via entities like the United States Commission on International Religious Freedom. Debates over detention policies at Guantanamo Bay detention camp and treaty commitments to instruments like the Geneva Conventions and the Convention on the Rights of the Child shape practice and critique.