Virgil (70-19 BC) consciously modeled the Aeneid after the two Homeric epics, Iliad and Odyssey. The first half of the poem (Books 1 through 6) focus on Aeneas' wanderings and are analogous to the Odyssey. The second half (books 7 through 12) focus on Aeneas' struggles to Lazio and the war against the deed and their allies, with clear allusion to the Iliad. Virgil's poem is an intricate work of literature, incorporating Greek and italic myths, legends, and folklore. A key theme of the poem is the tension between duty (piety) on the one hand, and anger (violence, rage) on the other. More specifically, Virgil asks us whether the end justifies the means. Human suffering in the short term is worth the establishment of peace and order in the long term?