In a ceremony at the White House, the president paid tribute to retired Marine Corps Maj. James Capers Jr., retired Army Maj. Nicholas Dockery and Marine Col. John W. Ripley, who died in 2008.

The Medal of Honor is the nation's highest military honor, often reserved for acts of extreme heroism and sacrifice.

In a ceremony at the White House, the president paid tribute to retired Marine Corps Maj. James Capers Jr., retired Army Maj. Nicholas Dockery and Marine Col. John W. Ripley, who…