French (L) and U.S. soldiers secure the area during a joint patrol with Afghan troops in the village of Hajian in the mountains of Afghanistan's Wardak Province July 12, 2009. REUTERS/Shamil Zhumatov
A U.S. soldier keeps watch at the site of an explosion in Logar province south of Kabul July 9, 2009. REUTERS/ Omar Sobhani
An Air Force carry team carries a transfer case containing the remains of Marine Sgt. Michael C. Roy Friday July 10, 2009 at Dover Air Force Base, Del. According to the Department of Defense, Roy, of North Fort Myers, Fla., died July 8 in Nimroz province, Afghanistan while supporting Operation Enduring Freedom. (AP Photo/Steve Ruark)
A Marine Corps carry team carries a transfer case containing the remains of Sgt. Michael C. Roy Friday July 10, 2009 at Dover Air Force Base, Del. According to the Department of Defense, Roy, of North Fort Myers, Fla., died July 8 in Nimroz province, Afghanistan while supporting Operation Enduring Freedom. (AP Photo/Steve Ruark)
U.S. Marines from the 2nd Marine Expeditionary Brigade, 1st Battalion 5th Marines temporarily occupy an abandoned mud walled farm compound in the Nawa district of Afghanistan's Helmand province Friday, July 10, 2009. Fighting overnight between international troops and Taliban militants in central Afghanistan has left as many as 22 insurgents dead, police said Friday. (AP Photo/David Guttenfelder)
An Army carry team carries the transfer case containing the remains of U.S. Army Spc. Christopher M. Talbert, 24, of Galesburg, Ill., during a dignified transfer ceremony at Dover Air Force Base, Del., Thursday, July 9, 2009. According to the Department of Defense, Talbert, died July 7 in Shindad, Afghanistan, of wounds suffered when an improvised explosive device detonated near his vehicle. (AP Photo/Luis M. Alvarez)
U.S. Marines from the 2nd MEB, 1st Battalion 5th Marines load water that was dropped by helicopter during a resupply to the compound where they stayed for the night, in the Nawa district of Afghanistan's Helmand province, Wednesday, July 8, 2009. (AP Photo/David Guttenfelder)
U.S. Marines from the 2nd MEB, 1st Battalion 5th Marines stop two Afghan bicyclists to speak with them, at a U.S. Marine checkpoint in the Nawa district of Afghanistan's Helmand province, Wednesday, July 8, 2009. (AP Photo/David Guttenfelder)
1st Sgt David Gill from Alliance, Oh of the OMLT Team Orthos from 1-145AR RGT, left, and Hungarian military adviser SFC Otto Szatmari, right, look at a hill while searching for pro-Taliban fighters near Kuk Cenar, Baghlan province of northern Afghanistan, Wednesday, July 8, 2009. The province's Afghan National Army (ANA) battalion started an operation Wednesday to search for insurgents in the Qandahari Valley with the assistance the Ohio National Guard and the Hungarian Army. (AP Photo/Bela Szandelszky)
U.S. Marines from the 2nd MEB, 1st Battalion 5th Marines watch as a helicopter drops an emergency water resupply outside a compound where they stayed for the night, in the Nawa district of Afghanistan's Helmand province, Wednesday, July 8, 2009. (AP Photo/David Guttenfelder)
U.S. Marines from the 2nd MEB, 1st Battalion 5th Marines sleep in their fighting holes inside a compound where they stayed for the night, in the Nawa district of Afghanistan's Helmand province, Wednesday July 8, 2009. (AP Photo/David Guttenfelder)
U.S. Marines from the 2nd MEB, 1st Battalion 5th Marines reach the end of a patrol in the Nawa district of Afghanistan's Helmand province Tuesday July 7, 2009. (AP Photo/David Guttenfelder)
A U.S. Marines from the 2nd MEB, 1st Battalion 5th Marines carries his weapon on his shoulders as they reach the end of a patrol in the Nawa district of Afghanistan's Helmand province Tuesday July 7, 2009. (AP Photo/David Guttenfelder)
U.S. servicemen board a plane bound for Afghanistan at Manas Air Base near Kyrgyzstan's capital Bishkek, February 13, 2009. REUTERS/Shamil Zhumatov
An Army Corps carry team carries the transfer case containing the remains of U.S. Army Pfc. Justin A. Casillas, 19, of Dunnigan, Calif., during a dignified transfer ceremony at Dover Air Force Base, Del., Monday, July 6, 2009. According to the Department of Defense, Casillas, died July 4 at Combat Outpost Zerok, Afghanistan, of wounds suffered when insurgents attacked the outpost using small arms and indirect fires. (AP Photo/Luis M. Alvarez)
An Army Corps carry team carries the transfer case containing the remains of U.S. Army Pfc. Aaron E. Fairbairn, 20, of Aberdeen, Wash., during a dignified transfer ceremony at Dover Air Force Base, Del., Monday, July 6, 2009. According to the Department of Defense, Fairbairn, died July 4 at Combat Outpost Zerok, Afghanistan, of wounds suffered when insurgents attacked the outpost using small arms and indirect fires. (AP Photo/Luis M. Alvarez)
Spc. Michael Levi Ray of Searcy Arkansas with the U.S. Army Reserve 90th Sustainment Brigade says goodbye to friends and family Wednesday July 8, 2009 in Little Rock, Ark. as he and comrades board busses bound for Fort Hood, Texas for training prior to being deployed to Iraq. (AP Photo/Brian Chilson)
An Iraqi and U.S. soldiers conduct a joint patrol in Mosul, 390 km (240 miles) north of Baghdad, June 19, 2009. REUTERS/Saad Shalash
U.S. soldiers check the video uplink for an Unmanned Aerial Vehicle (UAV) designed to provide an aerial view of the area, near Baghdad, June 22, 2009. REUTERS/U.S. Army/Spc. Joshua E. Powell/Handout
In this June 23, 2009, image released by the Department of Defense Major General Tony Cucolo, commander of the 3rd Infantry Division and Task Force Marne, prepares for a mock television interview with his public affairs officer, Maj. Jeff Allen, during a Mission Readiness Exercise at Fort Stewart, Ga. in preparation for their future deployment to Iraq. (AP Photo/U.S. Army, Col. Steven Boylan)
A U.S. Marine holds an American flag after being sworn in as a citizen at a naturalization ceremony at al-Faw Palace on the western outskirts of Baghdad, Iraq, Saturday, July 4, 2009. U.S. Vice President Joe Biden was in attendance as some 237 soldiers from 59 countries took the oath during his visit to Iraq. (AP Photo/ Khalid Mohammed)
U.S. Army soldiers walk through a sandstorm at Forward Operating Base Warhorse in Baqouba Iraq, Saturday, July 4, 2009. US troops completed their last patrols on Monday after their deadline to withdraw from Iraqi cities. (AP Photo/ Maya Alleruzzo)
U.S. Army soldiers are seen at Forward Operating Base Warhorse in Baqouba Iraq, Friday, July 3, 2009. US troops withdrew from Iraq's major cities on Tuesday. (AP Photo/ Maya Alleruzzo)
FILE - This Dec.15, 2003, file photo shows U.S. soldiers demonstrating access to the spider hole used by Saddam Hussein before he was captured the previous week, on a farm near Tikrit, northern Iraq. Unclassified FBI interviews conducted during his incarceration at a U.S. detention center show new details about the late Iraqi dictator's life on the run - both before and after he was ousted.(AP Photo/Efrem Lukatsky)
U.S. soldiers pay their respects to fallen comrades during Departure Day at Olsen camp in Samarra, 100 km (62 miles) north of Baghdad June 30, 2009. Picture taken June 30, 2009. REUTERS/Sabah al-Bazee
An Army soldier waits on a loader ramp with a transfer case containing the remains of Army Sgt. Timothy A. David of Gladwin, Mich.. before the start of a dignified transfer ceremony on Tuesday June 30, 2009, upon his arrival at Dover Air Force Base, Del. The Department of Defense announced the death of the soldier who was supporting Operation Iraqi Freedom. (AP Photo/Jose Luis Magana)
A transfer case containing the remains of Army Sgt. Timothy A. David of Gladwin, Mich.. is placed on a k-loader during a dignified transfer ceremony on Tuesday June 30, 2009, upon his arrival at Dover Air Force Base, Del. The Department of Defense announced the death of the soldier who was supporting Operation Iraqi Freedom .(AP Photo/Jose Luis Magana)
An Army carry team carries the transfer case containing the remains of Army Sgt. Timothy A. David of Gladwin, Mich.. during a dignified transfer ceremony on Tuesday June 30, 2009, upon his arrival at Dover Air Force Base, Del. The Department of Defense announced the death of the soldier who was supporting Operation Iraqi Freedom. (AP Photo/Jose Luis Magana)
An Army Corps carry team carries the transfer case containing the remains of Army Sgt. Timothy A. David of Gladwin, Mich.. during a dignified transfer ceremony on Tuesday June 30, 2009, upon his arrival at Dover Air Force Base, Del. The Department of Defense announced the death of the soldier who was supporting Operation Iraqi Freedom. (AP Photo/Jose Luis Magana)
U.S. Army Spc. Duztin Watson, 25, from Houston, Texas, of C Co., 1st Battalion, 5th Infantry Regiment, packs some of his belongings to be shipped home at Forward Operating Base Warhorse in Baqouba Iraq, Tuesday, June 30, 2009. U.S. troops completed their last patrols on Monday after their deadline to withdraw from Iraqi cities. (AP Photo/ Maya Alleruzzo)