An estimate of the losses of the principal nations engaged is shown in Table 9. As the final records are not yet wholly complete, these figures are approximate in some cases. Only deaths resulting directly from action are included. The total deaths from all causes is very much larger as some of the armies lost more heavily from diseases and privation than from battle. The table shows that Russia had the heaviest losses, in spite of the fact that she withdrew from the war after the fall of 1917.
American losses are third from the bottom of the list.
For every man who was killed in battle, seven others were wounded, taken prisoner, or reported missing. The total battle casualties in the expeditionary forces are shown in Table 10. The number who died of wounds was only 6 per cent as large as the number who were wounded. The hospital records show that about 85 per cent of the men sent to hospitals on account of injuries have been returned to duty. About half the wounded were reported as slightly wounded and many of them would not have been recorded as casualties in previous wars. except for 297 who died all the prisoners shown in the table have now been returned.