U.S. Military Engagements Since 2000

An interactive record of U.S. military engagements

America at War,
2001 – Present

Major conflicts, campaigns & operations undertaken by the United States since September 11, 2001  ·  Sources: Brown University Costs of War Project · CRS / Library of Congress · DoD

$8T+ Total spending
obligated
940,000 Direct deaths
(all parties)
4.5–4.7M Total deaths incl.
indirect
38M+ People
displaced
7 Major conflict
zones
Filter:
Timeline of Operations
Invasion / Ground War
Air Campaign
Drone / Strike Campaign
Support / Indirect
Conflict Detail — Click any card to expand
Sources & Methodology
Financial costs: Brown University Watson Institute, Costs of War Project (costsofwar.watson.brown.edu) — the most comprehensive public accounting of post-9/11 U.S. military spending, including DoD appropriations, veterans' care obligations and interest.
Casualty figures: Costs of War Project; Congressional Research Service, American War and Military Operations Casualties (RL32492); Congressional Research Service, U.S. Periods of War and Dates of Recent Conflicts (RS21405).
Operation dates: Library of Congress / Congress.gov; U.S. Department of Defense official operation designations.
All figures represent best available estimates as of early 2025. Figures for ongoing operations are subject to revision. "Direct deaths" counts combatants and civilians killed in direct violence; "indirect deaths" counts those killed by war-driven collapse of infrastructure, health systems and food supply, estimated at 3.6–3.8 million additional deaths (Costs of War, 2023).
Note: This graphic covers engagements with direct, sustained U.S. military involvement. Covert operations and some special-forces actions are not fully documented in public sources.