KING MEMORIAL EVENT Defense Secretary Chuck Hagel, left, speaks with Army Col. Gregory D. Gadson, the garrison commander of Fort Belvoir, Va., before the Martin Luther King Jr. Day event at the Pentagon, Jan. 16, 2014. DOD photo by U.S. Marine Corps Sgt. Aaron Hostutler SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 104407-I-HXG63-775.jpg Photo Gallery