Increasing Non-Fatal:Fatal Ratio
  BD WNM ratio (W/BD)
WWI 53,402 204,002 3.82
WWII 291,557 671,846 2.30
Korean War 33,741 103,284 3.06
Vietnam  47,424 153,303 3.23
Persian Gulf 147 467 3.18
OEF* 173 901 5.21
Iraq War (MCO) 109 542 4.97
Iraq Occup.* 1,990 19,403 9.75
* as of 2 Sep. 2006
Operation Enduring Freedom (OEF) covers operations in Afghanistan, the Philippines, and elsewhere
BD = Battle Deaths 
WNM = Wounded, Not Mortal
MCO = Major Combat Operations period
Source: US DoD