The Army and Marine Corps work together to battle one of their worst enemies-friendly fire.
Army Ranger Pat Tillman, a pro football player who gave up a small fortune to serve his country, turns out in death
Also known as fratricide or "blue-on-blue" deaths (the color of friendly forces on computer tracking screens), these incidents are attributed to the confusion of military engagements and usually go unpunished. No one was found at fault in Tillman's case, after investigators determined he was shot by a fellow Ranger who mistook him for the enemy during an Afghanistan gun battle with insurgents in April.
"We did better in Operation Iraqi Freedom statistically [in reducing fratricide]," Navy Adm. Edmund Giambastiani Jr., commander of the U.S. Joint Forces Command, told the House Armed Services Committee last fall. "However, one is too many."