For his ninth labor, Heracles was to get the girdle of Hippolyta, at the behest of Eurystheus' daughter Admete. The girdle of Hippolyta was an enchanted girdle belonging to the Queen of the Amazons, Hippolyta. The girdle had been a gift to her from her father Ares. Heracles would find that this task was to become quite a bit more complicated than his previous labors.
When Heracles went to Hippolyta to retrieve the girdle, she fell deeply for him, and gave it to him willingly. Enter Hera, ready and willing to spew forth more vengeful antics. Hera started rumors among the Amazon tribe that the hero and his companions were there to attack them and kidnap Hippolyta, their beloved queen. In retaliation, the Amazons attacked the Greeks, but were not victorious. They, according to differeing version of the myth, Heracles either raped Hippolyta and forced her to marry Theseus, one of his companions, or Heracles killed Hippolyta and fled with the girdle.
Another version of the myth has Theseus kidnapping Antiope, a sister of Hippolyta's. As they flee with the girdle and the girl, the Amazons attempts to attack, but fail. To get Antiope back, the Amazons unsuccessfully attack Athens (Theseus' home town).