Formally, the poem combines two sonnets, though the spacing of the stanzas is irregular.[citation needed] The text presents a vignette from the front lines of World War I; specifically, of British soldiers attacked with chlorine gas. In the rush when the shells with poison gas explode, one soldier is unable to get his mask on in time. The speaker of the poem describes the gruesome effects of the gas on the man and concludes that, if one were to see firsthand the reality of war, one might not repeat mendacious platitudes like dulce et decorum est pro patria mori: "it is sweet and honorable to die for one's country