Military operations involving the United States

Military operations involving the United States
Name	Military operations involving the United States
Dates	1775–present
Country	United States
Branch	United States Armed Forces
Type	Military operation

Contents

Military operations involving the United States

Military operations involving the United States encompass expeditionary actions, campaigns, interventions, occupations, and support missions conducted by the United States Armed Forces and partner organizations from the American Revolutionary War to contemporary deployments. These operations have unfolded across theaters such as the Atlantic Ocean, Pacific Ocean, Europe, Asia, Middle East, Africa, and Americas, intersecting with events like the Treaty of Paris (1783), the Monroe Doctrine, the Treaty of Versailles (1919), and the United Nations Charter. They implicate institutions including the Department of Defense, the United States Congress, the White House, and supranational bodies such as the North Atlantic Treaty Organization and the United Nations Security Council.

Overview and historical context

U.S. operations trace from the Continental Army engagements in the Siege of Yorktown and the maritime clashes of the Quasi-War through 19th‑century actions like the Mexican–American War, the American Civil War, and the Spanish–American War, extending into 20th‑century conflicts such as the World War I, the World War II, and the Korean War. Cold War era operations included covert actions by the Central Intelligence Agency, crises like the Bay of Pigs Invasion, and conventional commitments exemplified by the Vietnam War and the NATO intervention in Bosnia and Herzegovina. Post‑9/11 operations pivoted to the War in Afghanistan (2001–2021), the Iraq War, and counter‑terrorism campaigns against Al-Qaeda and ISIS. Domestic responses have involved entities such as the Federal Emergency Management Agency and operations like Hurricane Katrina disaster relief and Operation Jump Start.

U.S. operations are categorized into strategic and operational forms including combat operations, stability operations, peacekeeping operations, humanitarian intervention, and counterinsurgency. Distinctions appear among joint operations under United States Joint Chiefs of Staff, combined operations with allies like United Kingdom, France, and Australia, and special operations by units such as the United States Special Operations Command, United States Navy SEALs, and Delta Force. Legal classifications invoke authorities like the War Powers Resolution and authorizations such as the Authorization for Use of Military Force Against Terrorists. Training and readiness are structured through institutions including the National Defense University and combatant commands like United States Central Command and United States European Command.

Notable 20th‑century campaigns include the D-Day landings of Operation Overlord in Normandy, the Pacific campaign battles of Guadalcanal, Iwo Jima, and Okinawa, and the Shanghai Communiqué era tensions manifested in the Korean War's Battle of Inchon. Cold War and proxy-era operations featured the Bay of Pigs Invasion, Operation Condor contexts in Latin America, and air campaigns over Kosovo during Operation Allied Force. 21st‑century campaigns encompass Operation Enduring Freedom, Operation Iraqi Freedom, Operation Inherent Resolve against Islamic State of Iraq and the Levant, and maritime actions countering piracy off Somalia, including Combined Task Force 151. Technological and doctrinal shifts are evident in operations such as Operation Desert Storm and Operation Neptune Spear which combined airpower and special operations capabilities.

U.S. participation in multinational efforts includes long‑standing commitments to NATO led operations in Afghanistan (ISAF), coalition interventions in Operation Desert Shield and Operation Desert Storm with partners like Saudi Arabia and United Kingdom, and ad hoc coalitions such as the Global Coalition to Defeat ISIS comprising France, Germany, Canada, and Italy. United Nations mandates guided deployments to Korea (United Nations Command), Haiti (e.g., Operation Uphold Democracy), and Bosnia and Herzegovina under UNPROFOR and Implementation Force. Regional partnerships include exercises with Japan Self-Defense Forces, the Republic of Korea Armed Forces, and the Australian Defence Force.

Operations are governed by domestic statutes such as the National Security Act of 1947 and the War Powers Resolution, international instruments like the Geneva Conventions, and precedents from cases such as Youngstown Sheet & Tube Co. v. Sawyer. Command relationships are defined by the Goldwater–Nichols Act reforms, the Unified Combatant Command structure including United States Indo-Pacific Command, and civil‑military coordination with agencies like the Department of State and the United States Agency for International Development. Oversight mechanisms involve the Congressional Armed Services Committee, the Senate Armed Services Committee, and interagency processes exemplified by the National Security Council.

Sustaining operations relies on logistics systems from Defense Logistics Agency supply chains to strategic lift via Air Mobility Command and Military Sealift Command. Technological innovations—precision-guided munitions, unmanned aerial vehicles like the MQ-9 Reaper, satellite reconnaissance through National Reconnaissance Office, and cyber capabilities under United States Cyber Command—have reshaped doctrine and force structure. Force posture adjustments include forward basing in Guam, South Korea, and Germany, rotational deployments, and force transformations driven by concepts such as AirLand Battle and Multi-Domain Operations. Budgetary and industrial relationships involve the Defense Industrial Base, contractors like Lockheed Martin and Boeing, and acquisition frameworks governed by the Federal Acquisition Regulation.