ARMY CHIEFS Defense Secretary Leon E. Panetta speaks with Army Vice Chief of Staff Gen. Peter W. Chiarelli, right, and Army Chief of Staff Gen. Raymond T. Odierno before Chiarelli's retirement ceremony on Joint Base Myer-Henderson Hall in Arlington, Va., Jan. 31, 2012. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 748134-U-PMP79-118.jpg Photo Gallery