Flaners Fields is the generic name of the World War I battlefields in the medieval County of Flanders. At the time of World War I, the county no longer existed but corresponded geographically to the Belgian Flemish Region and the French Nord-Pas-de-Calais region. The name is particularly associated with the battles of Ypres, Passchendaele, and the Somme. For much of the war, the front line ran continuously from south of Zeebrugge in Belgium, to the Swiss border with France. John McCrae wrote a poem called Flanders fields which is about the soldiers dying in war.