Franz Ferdinand, heir presumptive to the Austro-Hungarian Empire, was mortally shot by a young Serbian nationalist, Gavrilo Princip.  When Princip pulled the trigger, he would unknowingly convict 20 million soldiers and civilians, many of them young men like himself, to their deaths.  World War I  was called "the war to end all wars", triggered by this lone assassination, would give way to some of history's most costly battles, heroic endeavors, and long lasting technological inventions.  One event though, stands out as a unique and truly remarkable story of humanity at its most inspiring, vulnerable, and hopeful levels.  This is the story of the Christmas Truce of 1914.