Since it's exactly 100 years as of today, I thought I post this story. It's one of the nicer war stories and shows what soldiers would do if they had it their way.
http://www.eyewitnesstohistory.com/trenches.htm
http://www.eyewitnesstohistory.com/trenches.htm
Quote: The Germans seem to have made the first move. During the evening of December 24 they delivered a chocolate cake to the British line accompanied by a note that proposed a cease fire so that the Germans could have a concert. The British accepted the proposal and offered some tobacco as their present to the Germans. The good will soon spread along the 27-mile length of the British line. Enemy soldiers shouted to one another from the trenches, joined in singing songs and soon met one another in the middle of no-mans-land to talk, exchange gifts and in some areas to take part in impromptu soccer matches.