Why was the World War II documentary Apocalypse named Apocalypse?

Apocalypse, doomsday judgment, Christian nouns, apocalypse. Through St. John, he foresaw the end. God gave him a scroll with seven seals on it. He can't open it. He saw that a lamb (Jesus) would open the seal and trigger a big judgment.

This means that World War II is the doomsday trial of fascist forces. After World War II, peace and development became the mainstream of the world.