US DoD and VA statistics:
http://siadapp.dmdc.osd.mil/personnel/MMIDHOME.HTM
http://www.defense.gov/faq/pis/sites.html
http://www1.va.gov/vetdata/

Iraq and Afghanistan index (Brookings):
http://www.brookings.edu/saban/iraq-index.aspx
http://www.brookings.edu/foreign-policy/afghanistan-index.aspx

Answered by James