U.S. Vice President Joe Biden, left, his wife, Jill Biden, center and Gen. Ray Odierno, the top U.S. commander in Iraq, right, are seen during a naturalization ceremony for service members at al-Faw Palace on the western outskirts of Baghdad, Iraq, Sunday, July 4, 2010. (AP Photo/Hadi Mizban)
Vice President Joseph R. Biden Jr. speaks with Iraqi President Jalal Talabani at the U.S. Embassy in Baghdad on Sunday. Mr. Biden spoke with other Iraqi leaders and said "all are going to have to play a meaningful role in this new government." (Associated Press)
Vice President Joe Biden (left) speaks Sunday with Iraqi Prime Minister Nouri al-Maliki (right) as Iraqi government spokesman Ali al-Dabbagh (center) looks on in Baghdad, Iraq. Biden said all political blocs must be included in the new Iraqi government in order for it to succeed. (Associated Press)
U.S. Vice President Joe Biden, right, Gen. Ray Odierno, center, and U.S. Ambassador to Iraq Christopher Hill, left, confer at the embassy in Baghdad, Iraq, Saturday, July 3, 2010. (AP Photo/Hadi Mizban)
Army Sgt. Ted Wade, who was hit by an explosive in Iraq that caused him traumatic brain injury and severed his right arm, walks on a path of rocks during a visit to the "Central Park" room at the National Intrepid Center of Excellence at the National Naval Medical Center in Bethesda, Md., Thursday, June 24, 2010. (AP Photo/Susan Walsh)
A protester holds a flyer depicting Iraq's Electricity Minister Karim Waheed, top left, and Jordanian-born militant Abu Musab al-Zarqawi, bottom left, during a demonstration against electricity shortages in Nasiriyah, about 200 miles southeast of Baghdad, Iraq, Monday, June 21, 2010. Riot police in southern Iraq used water cannons to disperse protesters pelting them with stones Monday during a demonstration against power cuts as anger spread over the lack of basic utilities to fend off the country's searing summer heat. In Arabic, the flyer reads, "Karim Waheed and Zarqawi are two sides of the same coin." (AP Photo)
FILE - This Sept. 21, 2008, file photo shows Iranian basij paramilitary volunteers, affiliated to the elite Revolutionary Guard, attending a parade ceremony, marking the 28th anniversary of the onset of the Iran-Iraq war (1980-1988), in front of the mausoleum of the late revolutionary founder Ayatollah Ruhollah Khomeini, just outside Tehran, Iran.
**FILE** An Iraqi soldier is seen near an Iraqi Army tank, which was destroyed in the U.S.-led invasion, in Basra, Iraq's second-largest city, 340 miles southeast of Baghdad, Iraq, on April 9. (Associated Press)
** FILE ** Former Iraqi Prime Minister Ayad Allawi speaks to the press in Baghdad on Saturday, March 27, 2010. (AP Photo/Karim Kadim)
**FILE** This 2003 photo obtained by the Associated Press shows a detainee bent over with his hands on the bars of a prison cell at the Abu Ghraib prison in Baghdad, Iraq. (AP Photo)
** FILE ** An Iraqi soldier stands guard in the Shiite enclave of Sadr City in Baghdad, Iraq, Wednesday, June. 24, 2009. (AP Photo/Hadi Mizban)
Supporters of anti-U.S. Shiite cleric Muqtada al-Sadr wave Iraqi flags as they destroy a symbolic model of a U.S. Army tank during a rally marking the seventh anniversary of the fall of the Iraqi capital to American troops in the holy Shiite city of Najaf, Iraq, Friday, April 9, 2010.(AP Photo/Karim Kadim)
Iraqi Prime Minister Nouri al-Maliki
Sgt. Karl Augustus, on his third tour in Iraq, says he thinks the new Iraq withdrawal timetable means his next deployment will be to Afghanistan, and he looks forward to that. "I'm just ready for whatever," he says.
In this image from APTN video, a man, center, throws a shoe at U.S. President George W. Bush, background left, during a news conference with Iraq Prime Minister Nouri al-Maliki, Sunday, Dec. 14, 2008, in Baghdad, Iraq. On an Iraq trip shrouded in secrecy and marred by dissent, Bush on Sunday hailed progress in the war that defines his presidency and got a size-10 reminder of his unpopularity when a man hurled two shoes at him during a news conference. (AP Photo) ** FILE **
** FILE ** President Bush is greeted by the commander of U.S. forces in Iraq, Gen. Raymond T. Odierno (left), and U.S. Ambassador to Iraq Ryan Crocker (center) on Sunday, Dec. 14, 2008, in Baghdad, on Mr. Bush's surprise visit to Iraq.
** FILE ** Soldiers who distinguished themselves in action in Afghanistan and Iraq receive honors during ceremonies at Fort Bragg, N.C., in 2008. The most-honored unit was a Special Forces team that won 10 Silver Star medals for valor during a single battle.
The operations center features numerous, movie-theater-size flat-screen monitors that stream live images from unmanned aircraft patrolling the two theaters of war in Iraq and Afghanistan. (U.S. Air Force)
FILE - Former U.S. President George W. Bush and Iraqi Prime Minister Nouri Maliki.
Marines of the 1st Force Service Supply Group Forward respond to reports of an Iraqi force preparing to advance on them from the south during a sandstorm in southern Iraq on March 25, 2003. President Bush's legacy depends on a positive outcome in Iraq. (J.M. Eddins Jr./The Washington Times)