While the nine Justice League members who fought in the Earth/Mars war are transported to Earth, Superman, Wonder Woman, and Supergirl meet the Flash in the satelliteājust in time to encounter three people who immediately transport the quartet to Earth-Two!
Justice League of America (1960-) #231 - Kurt Busiek & Alan Kupperberg
While the nine Justice League members who fought in the Earth/Mars war are transported to Earth, Superman, Wonder Woman, and Supergirl meet the Flash in the satelliteājust in time to encounter three people who immediately transport the quartet to Earth-Two!