Walter Reed Institute of Research portrait series highlight Soldiers on MLK day. Pictured Sgt. Alfred Luga. "One aspect of MLK's life that resonates with me is his ability to bring people from different ethnicities and backgrounds together," said Luga. "Due to his sacrifices, I have more rights as a black man today compared to those prior to the 1960s." (U.S. Army photo by Mike Walters/Released)