Thinking about praying for peace amongst the shards of war

We spent large parts of today wandering around the Imperial War Museum North designed by Daniel Libeskind. It was a glorious sunny day in Mediterranean Manchester with the extraordinary architecture of the regenerated dock area reflected in the water of ship canal.
I shall post more photos of the building and the exhibitions but for now just this, which is in the entrance area and explains Libeskind's shards idea - a shattered world from which to contemplate the varied and terrible experience of war.
Wandering around the exhibition today I was thinking about a liturgy I'm supposed to be writing for the International Day of Prayer for Peace ... when 100s, 1,000s millions are killed how can we rebuild, where does the future lie?