[kibibu]

There's additional context here that makes this poem more powerful in my opinion.

It's a direct response to Jessie Pope, an English poet and propagandist who would write poems like "Who's for the Game?", implying that the great war was all a bit of fun and those who didn't want to go were cowards.

Owen had actually been in the trenches, and tragically died only a few days before the armistice.