MILITARY HOSTILE NON-HOSTILE ACTION DEATHS WOUNDED DEATHS World War II (1941-45) Total 293,121 670,846 115,185 European Theater 185,179 498,948 66,805 Pacific Theater 107,903 171,898 48,380 Korean War (1950-53) 33,741 103,284 2,827 Vietnam War (1961-73) 47,415 153,303 10,789 Iraq War (2003-09) 3,444 31,342 857
In April 1945, the Joint Chiefs of Staff formally adopted a planning paper giving a range of possible casualties based on experience in both Europe and the Pacific. Given a troop list of 766,700 men and a 90-day campaign, the US Sixth Army could be expected to suffer between 514,072 casualties (including 134,556 dead and missing) under the "Pacific Experience" (1.95 dead & missing and 7.45 total casualties/1,000 men/day) and 149,046 casualties (including 28,981 dead and missing) under the "European Experience" (0.42 dead & missing and 2.16 total casualties/1,000 men/day). https://en.wikipedia.org/wiki/Operation_Downfall