The Black Riders and Other Lines and War is Kind, was
unconventional for the time in that it was written in free verse without rhyme,
meter, or even titles for individual works. They are typically short in length
and although several poems, such as "Do not weep, maiden, for war is kind", use
stanzas and refrains, most do not. Crane also differed from his peers and poets
of later generations in that his work contains allegory, dialectic and narrative
— Excerpted from Wikipedia, the free encyclopedia.