"This report collects statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001, and is ongoing. OEF actions take place primarily in Afghanistan; however, OEF casualties also includes American casualties in Pakistan, Uzbekistan, Guantanamo Bay (Cuba), Djibouti, Eritrea, Ethiopia, Jordan, Kenya, Kyrgyzstan, the Philippines, Seychelles, Sudan, Tajikistan, Turkey, and Yemen. Casualty data of U.S. military forces are compiled by the U.S. Department of Defense (DOD), as tallied from the agency's press releases. Also included are statistics on those wounded but not killed. Statistics may be revised as circumstances are investigated and as records are processed through the U.S. military's casualty system. More frequent updates are available at DOD's website at http://www.defenselink.mil/news/ under 'Casualty Update.' A detailed casualty summary of U.S. military forces that includes data on deaths by cause, as well as statistics on soldiers wounded in action, is available at the following DOD website: http://siadapp.dmdc.osd.mil/personnel/CASUALTY/castop.htm. NATO's International Security Assistance Force (ISAF) does not post casualty statistics of the military forces of partner countries on the ISAF website at http://www.isaf.nato.int/. ISAF press releases state that it is ISAF policy to defer to the relevant national authorities to provide notice of any fatality. For this reason, this report uses fatality data of coalition forces as compiled by CNN.com and posted online at http://www.cnn.com/SPECIALS/2004/oef.casualties/index.html. Casualty data of Afghan civilians are reported quarterly by the United Nations Assistance Mission to Afghanistan (UNAMA). Deaths of Afghan National Police and Afghan National Army personnel are reported by the Special Inspector General for Afghanistan Reconstruction in the quarterly reports to Congress that are required as part of P.L. 110-181. Because the estimates of Afghan casualties contained in this report are based on varying time periods and have been created using different methodologies, readers should exercise caution when using them and should look to them as guideposts rather than as statements of fact."
CRS Report for Congress, R41084