This section of the history takes place during the New 52, between the events of Flashpoint and DC Rebirth. It was later revealed that much of Wonder Woman's history from this time was an elaborate illusion created by the Gods of Olympus to keep her away from Paradise Island. All or part of this section may have been part of that illusion and no longer valid in Rebirth.
Warner Bros. unveiled its plans for San Diego Comic-Con 2019 on June 5, revealing that it would be skipping Hall H (the biggest panel room at the convention) and that it wouldn’t be bringing previews of some of its biggest upcoming releases—including Wonder Woman 1984—to fans. Jenkins confirmed on Twitter that we wouldn’t get a Wonder Woman 1984 preview at Comic-Con, but with the film coming out in exactly one year, she gave fans a tease in the form of a psychedelic poster of Wonder Woman in golden armor.
The original significance of Wonder Woman had the intentions of influencing many women of all ages, displaying the physical and mental strengths, values, and ethical attributes that not only men acquire. "Wonder Woman symbolizes many of the values of the women's culture that feminists are now trying to introduce into the mainstream: strength and self-reliance for women; sisterhood and mutual support among women; peacefulness and esteem for human life; a diminishment both of 'masculine' aggression and of the belief that violence is the only way of solving conflicts," Steinem wrote at the time.
Shortly after coming to the outside world, Diana interrupted a terrorist attack and was named "Wonder Woman" by the press. She continued to use her gifts to fight for peace and justice in Man's World. She later fought who she thought to be Ares, though in truth it was Phobos and Deimos who were disguised as their father. Fearing that she would eventually discover the truth and free Ares from his prison beneath Themyscira, the Gods of Olympus sent Phobos and Deimos to erase all memory of Themyscira from Diana's mind. The twin gods were unable to erase the memory, so instead they later implanted false memories regarding her home to deceive Diana, leading to a completely separate origin story and causing her to hallucinate new adventures. Diana was unaware that her memories had been tampered with, and believed the falsifications until her search for the truth led her to Ares himself years later.
Upon becoming a super-heroine, Wonder Woman became a founding member of the Justice League. Her ambassadorial duties required her to visit Washington D.C., with army officer Steve Trevor as her liaison. When Parademons stormed Metropolis, Wonder Woman resolved to defend the city, meeting the heroes Superman, Batman, Flash, Green Lantern and Aquaman. They also met the young hero Cyborg, who attempted to warn them against the evil alien conqueror Darkseid. Unfortunately, Cyborg's warnings were meaningless, as Darkseid had already arrived. Although Darkseid had initially beat them without effort, Green Lantern rallied them in order to confront Darkseid as a team. Wonder Woman proved crucial in Darkseid's defeat, stabbing him in one of his eyes to prevent him from using his Omega Beams. This gave Superman and Cyborg enough time to throw Darkseid back into his home-world.
Later, Diana, Zola and Hera had lunch while they were watched by Hermes. Orion, believing Hermes had bad intentions, attacked him before being stopped by Wonder Woman, and at the same time Strife appeared. Back at the apartment, Strife gave War's helmet to Diana, even though Diana still felt uncomfortable at becoming the new Goddess of War. In that moment, Siracca entered the apartment and told Diana that Milan had been captured by Cassandra. Wonder Woman asked Hermes to take her to Chernobyl, and he accepted to help.
This is a magnificent movie, well deserving all the praise heaped upon it. I am 65 years old, growing up with WWII veterans--soldiers, sailors and marines--all of them strong men in their prime, simple, humble and all of them joining the colors in 1941; men who saw horrors beyond belief ( I managed to steal a peek at the photos my dad brought home from the Pacific islands in the aftermath of a Japanese defeat--burned and mutilated corpses everywhere). As a result I spent many years studying the war in great detail. I mention all this to show that I grew up with a tremendous sense history and hope that I have some modicum of wisdom and gravitas after all these years. Along with this I became a 1st generation Trekkie in 1966, read Tolkien before it became a vast commercial success with games, comic books, and movies etc. I have always possessed a sense of wonder and fantasy.