“Dulce et Decorum Est”, describes the soldiers’ horrific trauma in World War1 with a bitter tone. The background of this poem is during World War 1 when the British soldiers were attacked by chlorine gas. In this poetry, one soldier was unable to get his mask on time and after suffering from the torturing gas, he unfortunately died. His excruciating death was portrayed with gruesome effects of the gas on him. This was part of his intention to indicate the grim reality with horror and futility of the war as he was convinced that the war seemed to be carrying on beyond the point of reason and kill too many innocent people. Which was why he wrote this poetry emphasizing on the irony of this situation. In the poem, he uses different rhythms and literary devices including dramatic descriptions and various images to show how the soldiers are not only physically, but also mentally devastated by exertions of battle. He strongly convinces the horror of the war to the readers who glamorize war.