Christmas 1916: 'a special programme of shooting'

I have been on holiday in Auckland for Christmas and New Years. Here is how my grandfather spent that 'cheery season' a hundred years ago at Fleurbaix, France, according to New Zealand Artillery in the Field, 1914-18:

On December 20th, and for a few days following, the guns on both sides of the line were fairly busy; but on Christmas Day, which was cold and bleak, the enemy gunners remained silent, though the New Zealand batteries carried out a special programme of shooting during the afternoon and evening. It was related that the enemy had sprung a surprise on the troops in line on the sector on the evening of Christmas, 1915, and possibly this activity was designed to provide against a similar occurrence. One day at the front is very much like another, and the only thing that outwardly marked this day as in any way different from the others was the provision of unlimited quantities of the traditional Christmas cheer. The material for these elaborate "spreads" was obtained almost entirely from farms in the back areas, where there was tremendous mortality among the cackling flocks, and from the Expeditionary Force canteens. It can hardly have been said to have been a "happy" Christmas; but at any rate everyone made the best of the untoward circumstances. The remainder of the month was uneventful enough, and batteries marked the passing of the year by a combined shoot on the enemy's roads and communications on the night of 31st December-1st January.

In our day, Pope Francis has marked the New Year, with a message for the World Day of Prayer for Peace preaching non-violence as a 'style of politics for peace':

While the last century knew the devastation of two deadly World Wars, the threat of nuclear war and a great number of other conflicts, today, sadly, we find ourselves engaged in a horrifying world war fought piecemeal. ... this “piecemeal” violence, of different kinds and levels, causes great suffering: wars in different countries and continents; terrorism, organized crime and unforeseen acts of violence; the abuses suffered by migrants and victims of human trafficking; and the devastation of the environment. ...
Violence is not the cure for our broken world. ... Jesus himself lived in violent times. Yet he taught that the true battlefield, where violence and peace meet, is the human heart: for “it is from within, from the human heart, that evil intentions come” (Mk 7:21).

Pope Francis goes on to say that to be true followers of Jesus today means embracing Jesus' teaching about nonviolence, then quotes from his predecessor Pope Benedict XVI:

“For Christians, nonviolence is not merely tactical behaviour but a person’s way of being, the attitude of one who is so convinced of God’s love and power that he or she is not afraid to tackle evil with the weapons of love and truth alone. Love of one’s enemy constitutes the nucleus of the ‘Christian revolution’”.

And in case you think this is all naive optimism and the world is a lost cause, I shall end with this positive video shared with me by Avaaz:
https://www.facebook.com/Avaaz/videos/10154488492703884/