Secretary Panetta performs a front line inspection of the troops Regimental Commander Col. James Markert, left, escorts Secretary of Defense Leon E. Panetta as he performs a front line inspection of the troops during an armed forces farewell tribute in his honor at Joint Base Meyer-Henderson Hall, Va., on Feb. 8, 2013. Panetta is stepping down as the 23rd secretary of defense. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 476727-W-OQY73-833.jpg Photo Gallery