When faced with a larger threat, Diana will wear her Amazon battle armour for added protection as well as use martial weapons such as swords. Technically speaking as well, as reimagined under the George Perez 1980s reboot, the iconic costume is in fact simply the breastplate of this armour. She will also additionally use a shield for added defense when she deems it necessary.
Perhaps due to her Amazonian background, Diana greatly respects other noble selfless warriors, as evidenced when she attended Superman's funeral in Smallville and spoke of how he had been much more than a soldier (adding to what Batman said about Metropolis burying an empty casket). As a result of her great posthumous respect, she was, therefore, more than willing to aid Batman in honoring the heroic death of Superman, by helping round up the metahumans from Lex Luthor's files to form a team of superheroes (later known as the Justice League) to protect the world from the imminent mysterious alien invader Steppenwolf and his Parademon minions after Superman's death left the world vulnerable.
Despite helping win the war, defeating Ares and still loving humanity, Diana is still left sobered, emotionally broken, psychologically scarred, and devastated over not having been able to save the Belgian village from Dr. Poison, as well as over her beloved Steve Trevor's self-sacrificing death. Indeed, Diana would later claim that she "would never be the same" ever again after World War I. Moreover, in the years that followed, Diana bore witness to a "century of horrors" (Wars, Fascism, Communism, nuclear weapons' deployment, geopolitical brinkmanship, racism, homophobia, genocides, war crimes, propaganda, and etc.), and due to all of this occurring without Ares being there to spread corruption, Diana almost completely lost faith in humanity, coming to believe that humans "made a world where standing together is impossible". As such, Diana resolved to mostly abandon superheroism for 100 years.
Diana is depicted as a masterful athlete, acrobat, fighter and strategist, trained and experienced in many ancient and modern forms of armed and unarmed combat, including exclusive Amazonian martial arts. With her godlike abilities of incalculable superhuman strength, nigh-invulnerability, speed, flight, healing factor and semi-immortality, Diana’s fighting prowess is enhanced. In some versions, her mother trained her, as Wonder Girl, for a future career as Wonder Woman. From the beginning, she is portrayed as highly skilled in using her Amazon bracelets to stop bullets and in wielding her golden lasso. Batman once called her the "best melee fighter in the world". The modern version of the character is known to use lethal force when she deems it necessary. In the New 52 continuity, her superior combat skills are the result of her Amazon training, as well as receiving further training from Ares, the God of War, himself, since as early as her childhood. The Golden Age Wonder Woman also had knowledge in psychology, as did her Amazon sisters.
^ Colluccio, Ali. "Top 5: Wonder Woman Reboots". iFanboy. Archived from the original on April 12, 2012. Retrieved April 10, 2012. After she was "erased" from existence in the final pages of Crisis on Infinite Earths, George Perez, Len Wein and Greg Potter brought the Amazon Princess back to the DC Universe. While the basics of the story remained the same, Wonder Woman;s powers were adjusted to include Beauty from Aphrodite, Strength from Demeter, Wisdom from Athena, Speed and Flight from Hermes, Eyes of the Hunter from Artemis, and Truth from Hestia. This run established Paradise Island as the mythical Amazon capital, Themyscira. Perez's Diana is not only strong and smart, but graceful and kind – the iconic Wonder Woman.
Before she was Wonder Woman, she was Diana, princess of the Amazons, trained to be an unconquerable warrior. Raised on a sheltered island paradise, when an American pilot crashes on their shores and tells of a massive conflict raging in the outside world, Diana leaves her home, convinced she can stop the threat. Fighting alongside man in a war to end all wars, Diana will discover her full powers…and her true destiny.
The story behind the writing and editing of Wonder Woman can be pieced together from Bender’s papers, at Brooklyn College; Frank’s papers, at the University of Minnesota; and Marston’s editorial correspondence, along with a set of original scripts, housed at the Dibner Library at the Smithsonian Institution Libraries. In his original scripts, Marston described scenes of bondage in careful, intimate detail with utmost precision. For a story about Mars, the God of War, Marston gave Peter elaborate instructions for the panel in which Wonder Woman is taken prisoner:
She also had an array of mental and psychic abilities, as corresponding to Marston's interest in parapsychology and metaphysics. Such an array included ESP, astral projection, telepathy (with or without the Mental Radio), mental control over the electricity in her body, the Amazonian ability to turn brain energy into muscle power, etc. Wonder Woman first became immune to electric shocks after having her spirit stripped from her atoms by Dr. Psycho's Electro Atomizer; it was also discovered that she was unable to send a mental radio message without her body.
Superhuman Reflexes: Wonder Woman's speed also extends to her reflexes, even if she is not moving at super speed, because when a German soldier fired her weapon past her, she could perceive the bullet as if it were moving in slow motion. She repeatedly used this skill to deflect bullets with her Bracelets of Submission and block the blows of her opponents with ease. One hundred years later, Wonder Woman's reflexes improve further, to the point that she was able to block all of the rapid machine-gun shots of a British terrorist with her bracelets, leaving the people standing behind her unscathed. When she dropped her sword mid-battle with Parademons, Wonder Woman was able to perceive Flash super speeding towards her fallen weapon, and hence outstretched her hand while he returned the sword to her grasp. Her reflexes were not powerful enough to contend with those of Flash or resurrected Superman, however, as Superman managed to grasp Wonder Woman's Bracelets of Submission before she could clash them.
During 1942 to 1947, images of bound and gagged women frequently graced the covers of both Sensation Comics and Wonder Woman. An early example includes a scene in Wonder Woman #3 (Feb.-March 1943), Wonder Woman herself ties up several women, dresses them in deer costumes and chases them through the forest. Later she rebinds them and displays them on a platter.
During the fight, Steve approaches Diana who can't hear him speak due to an explosion temporarily rupturing her eardrums. Steve, after much talking, departs and leaves Diana with his watch before boarding the plane which is taking off with the mustard gas. Ares eventually restrains Diana, imploring her to surrender and realize the futility of their fight. Diana notices the plane in the sky as she's pinned to the ground and watches in horror as it explodes with Steve sacrificing himself to save billions of lives.