Since the Civil War more than 39 million men and women have answered the call to serve. Of those, 3,440 served with such uncommon valor and and extraordinary courage that they were presented with the Medal of Honor, the nation's highest military award. Each of their heroic actionsis as unique as the person who performed it, and here more than one hundred of of America's living Medal of Honor recipients are honored and their bravery recounted by best-selling author Peter Collier and presented in duotone portraits by award-winning photographer Nick Del Calzo.