Although there is an intimate and tragic love story at its heart, Aida is set against the exotic background of the Egypt of the Pharaohs, and is full of patriotic, nationalistic sentiments, as the Egyptian army prepare to go to war to fight off a revolt by the Ethiopians. It's a perfect subject, in other words, for Verdi, and it was undoubtedly the nature of the storyline, much more than any commission for the new opera house in Cairo (which he repeatedly refused) or the grand occasion of the opening of the Suez Canal, that encouraged him to return to opera composition in 1871, and he would return in style with a magnificent work.