Happy Memorial Day!
I have been re-reading Crisis on Infinite Earths as primer for the Arrowverse crossover later in the year.
Earth X is the home to Uncle Sam and the Freedom Fighters.
On Earth X, World War II has been going on 40 years longer than it has on Earth-1.
Uncle Sam is the living embodiment of America and by his side stands The Ray, Black Condor, Phantom Lady, the Human Bomb, and Doll-Man.
The world of Earth X was featured in an earlier Arrowverse crossover, which is definitely worth checking out.
I hope you have a great Memorial Day and an awesome week ahead of you.