"During World War I, there was actually a period of unofficial peace known as the Christmas Truce. This event occurred on Christmas Day in 1914, when soldiers from both sides of the conflict agreed to lay down their arms and celebrate the holiday together. The truce started when German and British soldiers began singing carols across the trenches and eventually, they started talking and interacting with each other. It was a moment of humanity and compassion in the middle of a brutal war."