Watson Institute for International and Public Affairs
Costs of War

Human Cost of Post-9/11 Wars: Direct War Deaths in Major War Zones, Afghanistan & Pakistan (Oct. 2001 – Aug. 2021); Iraq (March 2003 – March 2023); Syria (Sept. 2014 – March 2023); Yemen (Oct. 2002-Aug. 2021) and Other Post-9/11 War Zones

HUMAN COSTS The number of people killed directly in the violence of the post-9/11 wars in Afghanistan, Pakistan, Iraq, Syria, Yemen, and elsewhere are estimated here. Several times as many more have been killed as a reverberating effect of the wars — because, for example, of water loss, sewage and other infrastructural issues, and war-related disease. Posted March 2023. Updated August 2023.

March 2023