Wonder Woman 1987 #5 Direct ed. - back issue - $3.00

Diana figures out that Harmonia's talisman warns of World War III and that by joining the image on the talisman to its opposite in a mirror she is able to take Etta, Julia, Matthew, and Steve to face Deimos and Phobos. When Diana cuts off Deimos' head and recovers the other half of the talisman, Phobos flees. Joining the two halves of the amulet, the group is instantly transported to a missile base where they face General Tolliver and finally Ares himself.

On-sale date from DC Releases #37.