AL ASAD, IRAQ - MAY 19: U.S. Marines Lance Corporal Walter Segura from the 2nd Battalion, 7th Marines cleans his M-16 rifle on May 19, 2004 at the Al Asad Airbase in Al Asad, Iraq. US Marines continue to patrol the military main supply route between Fallujah and Al Asad while training the Iraqi Civil Defence Corp and Iraqi Police for the hand over scheduled for June 30. (Photo by Justin Sullivan/Getty Images)
