索姆河
The text of the poem includes references to Nieuport (a coastal port down-river from Ypres), and "four Red Rivers", said to be the River Somme, the River Marne, the River Oise and the River Yser, which all flow through the World War I battlefields. The poem also talks about "a carven stone" and "a stark Sword brooding on the bosom of the Cross", referring to the Stone of Remembrance and the Cross of Sacrifice, architectural motifs being used by the Commission in the cemeteries.