WASHINGTON, DC - JULY 18: U.S. President Barack Obama presents the Medal of Honor to retired Army Lt. Col. Charles Kettles, during a ceremony in the East Room at the White House July 18, 2016 in Washington, DC. Kettles who was a UH-1D Huey helicopter pilot during the Vietnam War displayed extraordinary heroism, and is credited with saving the lives of 40 soldiers and four of his own crew members. (Photo by Mark Wilson/Getty Images)