The poem
When you are standing at your hero's grave, Or near some homeless village where he died, Remember, through your heart's rekindling pride, The German soldiers who were loyal and brave.
Men fought like brutes; and hideous things were done; And you have nourished hatred, harsh and blind. But in that Golgotha perhaps you'll find The mothers of the men who killed your son.

Siegfried Sassoon was born into a Jewish family and was bought up in the country. His reaction to the war was stronger than most, as he had first had experience with the lost of a friend and a brother he was bitter. Later on he realised that it wasn't entirely the Germans fault and went on to rally peace protests.
REconciliation shows that no matter what side you are fighting for the people are both the same, and so are their mothers and family waiting at home. He shows that war is glorified and the reader of the poem should learn to accept this.