Watson Institute for International and Public Affairs
Costs of War


  • Over 801,000 people have died in the post-9/11 wars due to direct war violence, and several times as many due to the reverberating effects of war
  • Over 335,000 civilians have been killed as a result of the fighting
  • 37 million — the number of war refugees and displaced persons
  • The US federal price tag for the post-9/11 wars is over $6.4 trillion 
  • The US government is conducting counterterror activities in 85 countries
  • The wars have been accompanied by violations of human rights and civil liberties, in the US and abroad

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CONTRIBUTE to costs of war

Shedding light on the unacknowledged costs of the U.S. post-9/11 wars.


The Costs of War Project