Pre-war vs. Post-war Poetry

What changes do you notice between the pre-war and post-war poetry we've read in class? What themes carry over between poems like Apollinaire's "Zone" and Eliot's "The Wasteland" and "The Love Song of J. Alfred Prufrock?" How have these themes changed? How do the poets utilize the often irregular structure of the poems to highlight the tone and themes of the poetry? Feel free to write anything else you feel is important for the comparison of these poems.