Costs of War research examines the human toll of U.S. military operations and spending, for U.S. service members, veterans, military contractors, and allies; and for civilians killed and displaced.

Costs of War research tallies U.S. spending on war and military operations and examines the broader economic consequences of this spending.

Costs of War research documents the social and political costs of U.S. war and militarism. These include the domestic effects of U.S. wars on populations at home.