By overcoming the boundaries of time and space, tree avenues incarnate amazingly powerful symbolic links: they can keep memories alive for generations; they can connect people and places; and they can demonstrate human solidarity, e.g. the cross-border avenue between Germany and Poland planted in 2014.

That is precisely what, one hundred years and a day after the 1918 Armistice, the international conference to be held in the repeatedly battle-torn Vosges region of France will show.