"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. […] 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. This report will be updated as needed."
CRS Report for Congress, R41084