"Dulce et Decorum est" is a poem written by Wilfred Owen during World War I, and published posthumously in 1920. The Latin title is taken from the Roman poet Horace and means "it is sweet and honorable...", followed by pro patria mori, which means "to die for one's country". Owen's poem is known for its horrific imagery and condemnation of war. It was drafted at Craiglockhart in the first half of October 1917 and later revised, probably at Scarborough but possibly Ripon, between January and March 1918. The earliest surviving manuscript is dated 8 October 1917 and addressed to his mother, Susan Owen, with the message "Here is a gas poem done yesterday (which is not private, but not final)."