Read the passage:
point for them the virtue of slaughter,
make plain to them the excellence of killing

what literary device is used and what effect does it have on the interpretation?

he uses irony because it is actually not virtuous or excellent to kill.

he uses imagery because you can visualize the soldiers slaugtering and killing.

he alludes to a past war.

he uses alliteration because the words suggest the sound of slaughtering and killing.