COMMANDERS' SHAKE Army Gen. David Petraeus (left), commander of U.S. Central Command, shakes hands with Army Maj. Gen. Jeffery Hammond, commanding general of the 4th Infantry Division, Multi-National Division-Baghdad, at the division’s headquarters on Camp Liberty, Iraq, Dec. 25, 2008. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 291497-P-PXP34-404.jpg Photo Gallery