The description "uses irony to describe a kingdom as a field with corpses" refers to the poem "Blenheim." In this poem, the poet, Robert Southey, uses irony to depict the aftermath of the Battle of Blenheim where the field is transformed into a kingdom of corpses. This contrast between the grandeur of a kingdom and the grim reality of war is a powerful use of irony in the poem.
On the other hand, "War is Kind" by Stephen Crane does not directly include this specific description of a kingdom as a field with corpses. In "War is Kind," Crane explores the themes of war, death, and the impact of conflict on individuals, but the specific ironic depiction of a kingdom as a field with corpses is not a part of this poem.
Therefore, based on the given description, the correct answer is "Blenheim" as the poem that uses irony to describe a kingdom as a field with corpses.
