Invasion! (DC Comics)

"Invasion!" was a three issue comic book limited series and crossover event published in late 1988-early 1989 by DC Comics. It was plotted by Keith Giffen, and ties up a great many plotlines from various Giffen-created DC series, including Omega Men, Justice League International, and Legion of Super-Heroes. A trade paperback collection of the three issues was released on September 3, 2008.