By the end of the war, Diana began to lose faith in both humanity and herself after Ares opened her eyes to humanity's potential for evil. While she still believed in the power of love and compassion to change humanity for the better, Diana was left sobered and emotionally broken over certain events from the war, such as the use of Dr. Poison's gas to massacre the entire village of Veld, and Steve Trevor's self-sacrificing death. After witnessing a "century of horrors", Diana largely stepped away from heroics until she witnessed the seemingly unstoppable Doomsday wreck havoc; ultimately joining in to battle him alongside Batman and Superman. After witnessing Superman's own sacrifice to stop the monster, however, Diana turned once again towards heroics; demonstrating not only her underlying belief in her own core values, but also in the positive effect true heroes can have on the world.
Preparing to get Zola back from Hades, Wonder Woman and her male companions sought out Eros in Italy. She hoped that he could lead them to Hephaestus, who might have been able to arm them appropriately for battle with the ruler of Hell. He lead them to Mount Etna, where the blacksmith agreed to arm them. As retribution for his aid, though, Hades sent a monster to kill them all, which had to be dispatched by Diana. Afterwards, Hephaestus armed Diana with new weapons, insisting that she take Eros' guns of love with her to Hell.
Never prone to stewing in solitude, and taking more notes from Richard Donner than from Christopher Nolan, Patty Jenkins' Wonder Woman provides a welcome respite from DC's house style of grim darkness—boisterous, earnest, sometimes sloppy, yet consistently entertaining—with star Gal Gadot proving an inspired choice for this avatar of truth, justice, and the Amazonian way.
The Diana Prince alias also played an important role after the events of Infinite Crisis. Wonder Woman was broadcast worldwide killing a villain named Maxwell Lord, as he was mind controlling Superman into killing Batman. When Wonder Woman caught him in her lasso, demanding to know how to stop Superman, Maxwell revealed that the only way to stop him was to kill Lord, so as a last resort Diana snapped his neck. To recover from the trauma of killing another person, the Amazon went into a self-imposed exile for one year. On her return to public life, Diana realized that her life as a full-time celebrity superhero and ambassador had kept her removed from humanity. Because of this she assumed the persona of Diana Prince and became an agent at the Department of Metahuman Affairs. During a later battle with the witch Circe, a spell was placed on Diana leaving her powerless when not in the guise of Wonder Woman.