Watson Institute for International and Public Affairs
Costs of War

US Budgetary Costs: $6.4 Trillion

The vast economic impact of the post-9/11 wars in Afghanistan, Pakistan, Iraq, Syria, and elsewhere is poorly understood by the US public and policymakers. This paper estimates the budgetary costs of war, including past expenditures and obligations to care for veterans of these wars throughout their lifetimes.

Human Costs: Over 801,000

The number of people killed directly in the violence of the wars in Afghanistan, Pakistan, Iraq, Syria, Yemen and elsewhere are approximated here. Several times as many civilians have died as an indirect result of the wars. The methods of accounting are described in this paper.