Military statistics showed that while 23 percent of U.S. troops wounded in combat in World War Two died and 17 percent in the Vietnam War, 9 percent of those wounded in Iraq and Afghanistan died. Without the advances since Vietnam, the U.S. death toll in Iraq would be nearly double the current total. But military doctors said some troops who may have died in previous wars are surviving, but with grievous injuries such as multiple limb amputations. More than 300 troops have undergone at least one limb amputation. By far the single biggest cause of combat wounds are blasts from IEDs. Download complete story, in PDF format.