Secretary of Defense Leon E. Panetta delivers the keynote address. Secretary of Defense Leon E. Panetta delivers the keynote address at the Centennial Commemorative Gala for Naval Aviation at the National Building Museum in Washington D.C., on December 1, 2011. Panetta spoke of the leadership and valor that naval aviators from the Navy, Marine Corps and Coast Guard have shown over the last 100 years. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 367145-P-WRK03-540.jpg Photo Gallery