On December 25, 1914, the German troops along the front line in World War I ceased fighting and started singing Christmas carols. As dawn broke, many emerged from trenches and approached the Allies, calling out “Merry Christmas.” World War I was only 5 months old, and they were observing the notion of chivalry between enemies in warfare on Christmas. In 1915, World War I fighting worsened. The concept of another Christmas Truce was unthinkable.
