I got to thinking about giant ships equipped with heavy weapons whose crews understand and maintain them poorly. Zentradi from Macross/Robotech and the Imperium of Man from wh40k.
Also, Robotech/Macross. The SDF-1 and the SDF-1 both crash, each having folded in from a different parallel world, on Macross Island. Ten years later, the Zentradi and the Zentradi each come looking for one of them and extra war happens. For extra, Max, Miryia, and Milia, and their sixteen daughters.
Also, Robotech/Macross. The SDF-1 and the SDF-1 both crash, each having folded in from a different parallel world, on Macross Island. Ten years later, the Zentradi and the Zentradi each come looking for one of them and extra war happens. For extra, Max, Miryia, and Milia, and their sixteen daughters.