The first 49 lines of Book I outlines the major themes of the Aeneid--Aeneas' quest to found a city, the physical and metaphysical struggles to accomplish that mission, the divine opposition of Juno to that mission, and the supremacy of Fate in all these affairs. Of these, the irae Iunonis and will of the Parcae receive the most backstory at the outset, through the recollection of the "Judgement of Paris". You may find an account here .
In a well-argued, three-paragraph essay, explain how Vergil represents the judgements effects through Juno's recollections and the way in which the defeat of Juno's Carthaginians is presented as a matter of Fate. Be sure to consider his use of allusion, foreshadowing and other literary devices to achieve this.