Instead, the narrator continues as his voice by proxy, indicting the society that caused the war and created the atrocity the killed the solder. Likewise, Graves is forever changed by his experience, losing the respect he used to hold for the values and norms of the society that caused the war and failed to understand the effect of the war upon all that was beautiful and young. In concussion, Sassoon's and Graves's work compare well as commentaries and criticisms upon what both authors appear to regard as the atrocity of war. Sassoon's very brief work has its impact in this very brevity, while Graves's detail and individual focus achieves the same effect. Both protagonists are severely traumatized by their experiences....

In both works, this trauma does not remain unaddressed. Both authors provide their central characters with a mouthpiece to denote the injustice against them and also the horror they witnessed and experienced during the war. In this way, the works are both an indictment of the society that created the war and would not take sufficient responsibility for its effects.
Sources

Buzzle.com. Siegfried Sassoon -- War Poet. 2010. Retrieved from http://www.buzzle.com/editorials/7-27-2006-103706.asp

Graves, Robert. Good-bye to All That. Providence: Berghan Books, 1995.

Sassoon, Friedrich. Suicide in the Trenches. Retrieved from http://community.livejournal.com/afoxhuntingman/3587.html