Army Gen. David Petraeus (13 images)

Army Gen. David Petraeus, commander of the Multi-National Force Iraq, testifies before a Senate Foreign Relations Committee hearing on the situation in Iraq on Capitol Hill in Washington on April 8, 2008. (UPI Photo/Kevin Dietsch)

Sen. John Warner (R-VA) questions U.S. Ambassador to Iraq Ryan Crocker and Army Gen. David Petraeus, commander of the Multi-National Force Iraq, during a Senate Armed Services Committee hearing on the situation in Iraq on Capitol Hill in Washington on April 8, 2008. (UPI Photo/Kevin Dietsch)

Presidential candidate Sen. John McCain (R-AZ) (R) shares a laugh with Sen. Joe Lieberman (I-CT) questions U.S. Ambassador to Iraq Ryan Crocker and Army Gen. David Petraeus, commander of the Multi-National Force Iraq, during a Senate Armed Services Committee hearing on the situation in Iraq on Capitol Hill in Washington on April 8, 2008. (UPI Photo/Kevin Dietsch)

Army Gen. David Petraeus (L), commander of the Multi-National Force Iraq, testifies before a House Armed Services Committee hearing on the situation in Iraq on Capitol Hill in Washington on April 9, 2008. (UPI Photo/Kevin Dietsch)