More than 1,000 American troops have been wounded in battle over the past three months in Afghanistan, accounting for one-fourth of those injured in combat since the U.S.-led invasion in 2001. The dramatic increase in amputees and other seriously injured service members comes as October marks the deadliest month for U.S. troops in Afghanistan. Pentagon press secretary Geoff Morrell acknowledged that the casualties in Afghanistan have surpassed Iraq surge proportions and noted that the violence in Afghanistan is directed more against U.S. and other coalition forces, whereas it was heavily sectarian in Iraq. "It shows you how we are the targets and how effectively they are targeting us," Morrell said. He noted that Defense Secretary Robert M. Gates has become concerned about the rising number of wounded and has ordered thousands of additional support troops to Afghanistan to look for, and minimize, the roadside bombs. Military doctors said the nature of the Afghanistan casualties is reminiscent of those in Iraq in 2007. "We"re seeing similar types of injuries from Afghanistan that we saw in Iraq" before and during the surge, said Lt. Col. Shelton Davis, chief of physical medicine at Walter Reed Army Medical Center in Washington. More than 1,000 improvised explosive devices, or roadside bombs, exploded or were found in Afghanistan in August, more than double any monthly total until this summer. The bombs account for 70 to 80 percent of U.S. and coalition casualties in that country, according to Lt. Gen. Thomas F. Metz, director of the Pentagon"s Joint Improvised Explosive Device Defeat Organization. --SPA