sentences:  For most of the war, the front line ran continuously from south of Zeebrugge on the Belgian coast, across Flanders Fields into the centre of Northern France before moving eastwards — and it was known as the Western Front.The phrase was popularized by a poem, "In Flanders Fields", by Canadian Lieutenant-Colonel John McCrae which was inspired by his service during the Second Battle of Ypres.The fields were unmaintained for years before they were made into a memorial.