Final answer:
The poem 'War Is Kind' employs the literary device of irony to convey the theme of war's cruelty.
Step-by-step explanation:
The literary device being employed in the title of the poem 'War Is Kind' is irony. Irony is a figure of speech in which the intended meaning is different from the literal meaning. In this case, the title suggests that war is kind, but the content of the poem actually reveals the cruelty of war.
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