Wallonia saw the very start of WW1, when the city of Liège was invaded by the Germans in August 1914. 

It also witnessed some of the fiercest battles of WW1, including the Battle of the Frontiers, and also the Battle of Mons, the first to pit the British Expeditionary Force against the German invader.

It was in the Western Front that the first British shot of the war was fired, and that the first and last British soldiers of the war lost their lives.