Final answer:
Siegfried Sassoon used poetry to express his anti-war sentiments and societal critiques, depicting the true horrors of the battlefield and challenging the glorified view of war. His poignant war poems positioned him as a critical voice during WWI, aligning with Modernist sensibilities in art and literature.
Step-by-step explanation:
Siegfried Sassoon utilized poetry primarily to express his anti-war sentiments and criticize society (A). As an English poet and a soldier in World War I, Sassoon was well-acquainted with the horrors of war, and his poems often reflect the brutal reality of the trenches and battlefields. In his poem "Counter-Attack," for example, he brings the grim experiences of combat to the fore, challenging the glorified visions of war that were prevalent at the time. Sassoon's poetry depicted war not as a heroic endeavor but rather as a harrowing and inhumane struggle that caused immense suffering.
Sassoon's critical stance on war also reflects a broader disillusionment within society, as seen in the Modernist poetry of this era, which often grappled with the devastating effects of WWI and the values that had led to such global conflict. Sassoon, alongside other contemporary poets like Wilfred Owen, employed poetry as a means to portray the grim realities faced by soldiers and to question the societal values that perpetuated the conflict. Their works exposed the inhumanity of war, eschewing romanticized notions of bravery and honor for a more somber and realistic representation of the soldiers' experience.