The Story: "Crisis on Earth-X!" by Len Wein, Dick Dillin, and Dick Giordano. The JLA and the JSA are preparing for their yearly get together, using their new matter transporter(basically a big metal box).
Of course, it doesbn't go right, and none of the heroes show up--instead, they've been transported to another Earth, where they are immediately attacked by tanks bearing Nazi swatstikas!
But these aren't any old Nazis--their weapons seem to have super-advanced powers, and they knock around our heroes pretty good, until they are rescued by a team of superheroes--The Freedom Fighters!
Their leader, Uncle Sam, explains that on this Earth, The Nazis won World War II, and they are the last surviving superheroes, still fighting the power. To mollify the population, the Nazis came up with a sort of mind-control device. The FF has developed an immunity, so they will not relent.
The JLA and the JSA of course agree to help the Freedom Fighters defeat the Nazis(haven't they heard of the Prime Directive?), and Dr.Fate uses his powers to find the source of the beam that projects the Nazis' hypno-ray.
Several places around the globe appear, so the heroes split up to search, leaving Red Tornado behind to coordinate. Batman, Dr.Fate, The Ray, and the Human Bomb head to Paris.
Dick Dillin was not known for his work being particularly moody--Batman pretty much looked like another costumed hero--but occasionally he outdid himself, like this imposing panel of Batman about to bust some Ratzi head:
The four heroes find the machine sending out the beam, and it looks more like a giant robot, one that creates four demon-like creatures to dispatch the heroes.
The demons are quickly defeated, and the heroes smash the machine. Unfortunately, it doesn't seem to make a difference--everyone is still under mind control!
Meanwhile, back on Earth-1, the remaining JLAers are trying to figure out where their friends went. They begin to wonder...what if they're dead? To be continued!
Roll Call: Batman, Flash, Green Lantern, Green Arrow, Black Canary, Elongated Man, Red Tornado
Notable Moments: The first issue in a looong time that didn't feature Superman, although they sort of got him in, in that the Earth-2 version participates.
A Nazi planet is just too good a story concept not to try, whether its a comic book, a novel, or an episode of Star Trek.
Dick Dillin was one of the few artist that could draw Phantom Lady and not make the comic look like something you'd have to hide from your parents.