Wasn't aware of this before! "Christmas truces between opposing soldiers continued throughout WWI rather than being a one-off, a historian has claimed. A seasonal ceasefire, exchange of gifts and carol singing famously took place on the battlefields in 1914. Dr Thomas Weber, of the University of Aberdeen, says cease-fires continued to take place in 1915 and 1916. However, the academic believes this was played down when it came to official war records." BBC News - Christmas truces during WWI 'were not one-offs'
there was a History Channel Classroom documentary about this on a few days ago. It was very interesting and sad.
I remember my history teacher telling us of a story where shortly after the "Christmas Truce" both sides would sneak over messages to each other ahead of any bombardment or raids that may occur. The messages essentially told them to get out of certain sections of the trench where the bombardments were being planned. If memory serves right, the solution to this "problem" was to transfer such units out of an area and disperse its members among different areas of the line.
